Welcome to LookChem.com Sign In|Join Free

CAS

  • or

248281-84-7 Suppliers

Post Buying Request

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier
  • 248281-84-7 Structure
  • Basic information

    1. Product Name: CIVENTICHEM CV-4057
    2. Synonyms: CIVENTICHEM CV-4057;LAQUINIMOD,5-CHLORO-4-HYDROXY-1-METHYL-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID ETHYL-PHENYL-AMIDE;5-Chloro-4-hydroxy-1-methyl-2-oxo-N-ethyl-N-phenyl-1,2-dihydroquinoline-3-carboxamide;Lanquinimod;LaquiniMod,CiventicheMCV-4057,5-Chloro-4-hydroxy-1-Methyl-2-oxo-1,2-dihydroquinoline-3-carboxylicacidethylphenylaMide;5-chloro-N-ethyl-4-hydroxy-1-Methyl-2-oxo-N-phenyl-1,2-dihydroquinoline-3-carboxaMide;5-Chloro-4-hydroxy-1-Methyl-2-oxo-1,2-dihydro-quinoline-3-carboxylic acid ethyl-phenyl-aMide;LaquiniMod, SAIK-MS coMpound, ABR-215062
    3. CAS NO:248281-84-7
    4. Molecular Formula: C19H17ClN2O3
    5. Molecular Weight: 356.807
    6. EINECS: 1592732-453-0
    7. Product Categories: Inhibitors;api;Heterocycles
    8. Mol File: 248281-84-7.mol
    9. Article Data: 19
  • Chemical Properties

    1. Melting Point: 201 °C (decomp)
    2. Boiling Point: 484.799 °C at 760 mmHg
    3. Flash Point: 246.998 °C
    4. Appearance: /
    5. Density: 1.396 g/cm3
    6. Vapor Pressure: 0mmHg at 25°C
    7. Refractive Index: 1.674
    8. Storage Temp.: Sealed in dry,Room Temperature
    9. Solubility: Soluble in DMSO (>25 mg/ml)
    10. PKA: 4.50±1.00(Predicted)
    11. Stability: Stable for 2 years from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.
    12. CAS DataBase Reference: CIVENTICHEM CV-4057(CAS DataBase Reference)
    13. NIST Chemistry Reference: CIVENTICHEM CV-4057(248281-84-7)
    14. EPA Substance Registry System: CIVENTICHEM CV-4057(248281-84-7)
  • Safety Data

    1. Hazard Codes: T
    2. Statements: 25
    3. Safety Statements: 45
    4. RIDADR: UN 2811 6.1 / PGIII
    5. WGK Germany:
    6. RTECS:
    7. HazardClass: N/A
    8. PackingGroup: N/A
    9. Hazardous Substances Data: 248281-84-7(Hazardous Substances Data)

248281-84-7 Usage

Description

CIVENTICHEM CV-4057, also known as Laquinimod, is an immunomodulator with the chemical formula (248281-84-7). It functions by inhibiting inflammation and autoimmunity through the activation of the aryl hydrocarbon receptor (AhR). Laquinimod has been extensively studied for its potential therapeutic applications in various diseases, including multiple sclerosis and Huntington's disease.

Uses

Used in Pharmaceutical Industry:
CIVENTICHEM CV-4057 is used as an immunomodulator for the treatment of multiple sclerosis. It has demonstrated efficacy in reducing inflammation and autoimmunity, which are key factors in the progression of the disease.
CIVENTICHEM CV-4057 is also used as a potential treatment for Huntington's disease. It has shown positive results in disease models, suggesting its potential to alleviate symptoms and improve the quality of life for patients.
Additionally, due to its immunomodulatory properties, CIVENTICHEM CV-4057 may have applications in other areas of medicine where inflammation and autoimmunity play a significant role, such as autoimmune disorders and certain types of cancer. Further research and clinical trials would be necessary to explore these potential applications fully.

in vitro

abr-215062 was shown to completely inhibit the development of murine acute experimental autoimmune encephalomyelitis (eae) [1].

in vivo

abr-215062 dose-dependently inhibited disease and showed better disease inhibitory effects as compared to roquinimex (linomide). furthermore, abr-215062 inhibited the inflammation of both cd4+ t cells and macrophages into central nervous tissues [2].

References

J?nsson et al. (2004), Synthesis and Biological Evaluation of New 1,2-Dihydro-4-hydroxy-2-oxo-3-quinolinecarboxamides for Treatment of Autoimmune Disorders: Structure-Activity Relationship; Med. Chem. 47 2075 Rothhammer et al. (2021); Aryl Hydrocarbon Receptor Activation in Astrocytes by Laquinimod Ameliorates Autoimmune Inflammation in the CNS, Neurol. Neuroimmunol. Neuroinflamm., 8 e946 Pitarokoili et al. (2014), Laquinimod exerts strong clinical and immunomodulatory effects in Lewis rat experimental autoimmune neuritis; Neuroimmunol., 274 38 Ott et al. (2019), Laquinimod, a prototypic quinoline-3-carboxamide and aryl hydrocarbon receptor agonist, utilizes CD155-mediated natural killer/dendritic cell interaction to suppress CNS autoimmunity; Neuroinflammation, 16 49 Kaye et al. (2016), Laquinimod arrests experimental autoimmune encephalitis by activating the aryl hydrocarbon receptor; Natl. Acad. Sci. USA., 113 E6145 Th?ne and Linker (2016), Laquinimod in the treatment of multiple sclerosis: a review of the data so far; Drug Des. Devel. Ther., 10 1111 Dobson et al. (2016), Laquinimod dampens hyperactive cytokine production in Huntington’s disease patient myeloid cells; Neurochem., 137 782 Garcia-Miralles et al. (2016), Laquinimod rescues striatal, cortical and white matter pathology and results in modest behavioural improvements in the YAC128 model of Huntington disease; Rep., 6 31652

Check Digit Verification of cas no

The CAS Registry Mumber 248281-84-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,8,2,8 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 248281-84:
(8*2)+(7*4)+(6*8)+(5*2)+(4*8)+(3*1)+(2*8)+(1*4)=157
157 % 10 = 7
So 248281-84-7 is a valid CAS Registry Number.
InChI:InChI=1/C19H17ClN2O3/c1-3-22(12-8-5-4-6-9-12)19(25)16-17(23)15-13(20)10-7-11-14(15)21(2)18(16)24/h4-11,23H,3H2,1-2H3

248281-84-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 5-chloro-N-ethyl-4-hydroxy-1-methyl-2-oxo-N-phenylquinoline-3-carboxamide

1.2 Other means of identification

Product number -
Other names 5-Chloro-N-Et-4-hydroxy-1-methyl-2-oxo-N-Ph-1,2-dihydroquinoline-3-carboxamide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:248281-84-7 SDS

248281-84-7Synthetic route

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester
637027-41-9

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester

N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
In n-heptane for 6.58333h; Heating;98%
In n-heptane98%
In n-heptane for 4h; Product distribution / selectivity; Reflux; Molecular sieve;98%
In n-heptane for 6h; Reflux;97%
In octane; n-heptane at 112℃; for 5h; Inert atmosphere; Large scale;96%
1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester
637027-41-9

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester

N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

A

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

B

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
In n-heptane Heating / reflux;A n/a
B 98%
In toluene Heating / reflux;A n/a
B 98%
In n-heptane for 6.58333h; Heating / reflux;A 0.03%
B 98%
In toluene for 3.25h; Heating / reflux;A 0.54%
B 90%
1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester
637027-41-9

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester

N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

A

methanol
67-56-1

methanol

B

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
In n-heptane for 6.58333h; Product distribution / selectivity; Heating / reflux;A n/a
B 98%
5-chloro-N-ethyl-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-N-phenyl-3-quinolinecarboxamide sodium salt

5-chloro-N-ethyl-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-N-phenyl-3-quinolinecarboxamide sodium salt

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
With hydrogenchloride In water96%
Stage #1: 5-chloro-N-ethyl-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-N-phenyl-3-quinolinecarboxamide sodium salt With sodium hydroxide In water at 50℃; pH=12.5;
Stage #2: With hydrogenchloride In ethanol; water at 4℃; pH=5; Product distribution / selectivity;
56.2%
N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid
335640-50-1

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
With thionyl chloride; triethylamine In dichloromethane at 0 - 20℃; for 4.5h;87%
With dicyclohexyl-carbodiimide In toluene at 80℃; for 4h; Reagent/catalyst; Inert atmosphere; Large scale;62%
Stage #1: N-ethyl-N-phenylamine With dichlorotriphenylphosphorane In chloroform at 25 - 30℃; for 0.25h; Inert atmosphere;
Stage #2: 5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid In chloroform at 25 - 45℃; Product distribution / selectivity;
methyl 2-chloro-6-[[3-(ethyl(phenyl)amino)-3-oxopropanoyl]methylamino]benzoate
1379595-99-9

methyl 2-chloro-6-[[3-(ethyl(phenyl)amino)-3-oxopropanoyl]methylamino]benzoate

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Stage #1: methyl 2-chloro-6-[[3-(ethyl(phenyl)amino)-3-oxopropanoyl]methylamino]benzoate With sodium methylate In tetrahydrofuran; methanol for 2h; Inert atmosphere; Reflux;
Stage #2: With water; sodium hydroxide In methanol at 5℃; for 0.5h;
Stage #3: With hydrogenchloride In methanol; water Product distribution / selectivity;
87%
5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid ethyl ester
248282-10-2

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid ethyl ester

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 0.1 h / 100 °C / microwave irradiation
2: 98 percent / heptane / 6.58 h / Heating
View Scheme
Multi-step reaction with 2 steps
1: 91 percent / HCl / acetic acid / 6 h / 60 °C
2: 87 percent / SOCl2; Et3N / CH2Cl2 / 4.5 h / 0 - 20 °C
View Scheme
5-chloro-1H-benzo[d][1,3]oxazine-2,4-dione
20829-96-3

5-chloro-1H-benzo[d][1,3]oxazine-2,4-dione

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: NaH / dimethylformamide / 5 h / 20 °C
2: NaH / dimethylformamide / 5 h / 85 °C
3: 91 percent / HCl / acetic acid / 6 h / 60 °C
4: 87 percent / SOCl2; Et3N / CH2Cl2 / 4.5 h / 0 - 20 °C
View Scheme
Multi-step reaction with 4 steps
1.1: sodium carbonate / N,N-dimethyl-formamide / 1.25 h / 0 - 30 °C / Inert atmosphere
2.1: sodium methylate / N,N-dimethyl-formamide / 1.5 h / 25 - 85 °C / Inert atmosphere
2.2: 1.17 h / 80 - 85 °C
2.3: 2 h / 25 - 30 °C / pH 1
3.1: hydrogenchloride; acetic acid / 80 - 85 °C
4.1: dichlorotriphenylphosphorane / dichloromethane / 0.25 h / 25 - 30 °C / Inert atmosphere
4.2: 3 h / 25 - 45 °C
View Scheme
Multi-step reaction with 2 steps
1.1: sodium hydride / mineral oil; N,N-dimethyl acetamide / 45 °C / Inert atmosphere
1.2: 2 h / 20 °C / Inert atmosphere
2.1: sodium hydride / mineral oil; N,N-dimethyl acetamide / 7 h / 85 °C / Inert atmosphere
View Scheme
2-chloro-6-aminobenzoic acid
2148-56-3

2-chloro-6-aminobenzoic acid

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: dioxane / 1 h / 20 °C
2: NaH / dimethylformamide / 5 h / 20 °C
3: NaH / dimethylformamide / 5 h / 85 °C
4: 91 percent / HCl / acetic acid / 6 h / 60 °C
5: 87 percent / SOCl2; Et3N / CH2Cl2 / 4.5 h / 0 - 20 °C
View Scheme
Multi-step reaction with 3 steps
1.1: 1,4-dioxane / 12 - 20 °C
2.1: sodium hydride / mineral oil; N,N-dimethyl acetamide / 45 °C / Inert atmosphere
2.2: 2 h / 20 °C / Inert atmosphere
3.1: sodium hydride / mineral oil; N,N-dimethyl acetamide / 7 h / 85 °C / Inert atmosphere
View Scheme
Multi-step reaction with 3 steps
1: 1,4-dioxane / 12 - 20 °C
2: potassium carbonate / N,N-dimethyl-formamide / 72 h / 20 °C / Inert atmosphere; Large scale
3: sodium hydride / mineral oil; N,N-dimethyl acetamide / 7 h / 85 °C / Inert atmosphere
View Scheme
5-chloro-N-methylisatoic anhydride
40707-01-5

5-chloro-N-methylisatoic anhydride

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: NaH / dimethylformamide / 5 h / 85 °C
2: 91 percent / HCl / acetic acid / 6 h / 60 °C
3: 87 percent / SOCl2; Et3N / CH2Cl2 / 4.5 h / 0 - 20 °C
View Scheme
Multi-step reaction with 3 steps
1.1: sodium methylate / N,N-dimethyl-formamide / 1.5 h / 25 - 85 °C / Inert atmosphere
1.2: 1.17 h / 80 - 85 °C
1.3: 2 h / 25 - 30 °C / pH 1
2.1: hydrogenchloride; acetic acid / 80 - 85 °C
3.1: dichlorotriphenylphosphorane / dichloromethane / 0.25 h / 25 - 30 °C / Inert atmosphere
3.2: 3 h / 25 - 45 °C
View Scheme
Multi-step reaction with 2 steps
1: mineral oil; N,N-dimethyl acetamide / 5 h / 85 °C / Inert atmosphere
2: n-heptane; octane / 5 h / 112 °C / Inert atmosphere; Large scale
View Scheme
Multi-step reaction with 3 steps
1: mineral oil; N,N-dimethyl acetamide / 5 h / 85 °C / Inert atmosphere
2: hydrogenchloride; acetic acid; water / acetic anhydride / 2 h / 20 - 85 °C / Inert atmosphere; Large scale
3: dicyclohexyl-carbodiimide / toluene / 4 h / 80 °C / Inert atmosphere; Large scale
View Scheme
Multi-step reaction with 2 steps
1.1: sodium hydride / N,N-dimethyl-formamide; mineral oil / 20 °C / Inert atmosphere
1.2: 5 h / 80 °C
2.1: n-heptane / 6 h / Reflux
View Scheme
N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid ethyl ester
248282-10-2

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid ethyl ester

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
In n-heptane
1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester
637027-41-9

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: hydrogenchloride; acetic acid / 80 - 85 °C
2.1: dichlorotriphenylphosphorane / dichloromethane / 0.25 h / 25 - 30 °C / Inert atmosphere
2.2: 3 h / 25 - 45 °C
View Scheme
Multi-step reaction with 2 steps
1: hydrogenchloride; acetic acid; water / acetic anhydride / 2 h / 20 - 85 °C / Inert atmosphere; Large scale
2: dicyclohexyl-carbodiimide / toluene / 4 h / 80 °C / Inert atmosphere; Large scale
View Scheme
N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: dichloromethane / 14 h / 20 °C / Inert atmosphere
2.1: water; lithium hydroxide / tetrahydrofuran / 1.5 h / 20 °C
2.2: 0 - 5 °C / pH 2 - 3
3.1: pyridine / dichloromethane / 0.5 h / 20 - 25 °C / Inert atmosphere
3.2: 1 h / 0 - 5 °C
3.3: 0 - 20 °C
4.1: sodium methylate / tetrahydrofuran; methanol / 2 h / Inert atmosphere; Reflux
4.2: 0.5 h / 5 °C
View Scheme
Multi-step reaction with 2 steps
1: triethylamine / acetone / 2 h / 2 - 20 °C / Inert atmosphere
2: sodium hydride / mineral oil; N,N-dimethyl acetamide / 7 h / 85 °C / Inert atmosphere
View Scheme
3-(Ethyl(phenyl)amino)-3-oxopropanoic acid
118081-77-9

3-(Ethyl(phenyl)amino)-3-oxopropanoic acid

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: pyridine / dichloromethane / 0.5 h / 20 - 25 °C / Inert atmosphere
1.2: 1 h / 0 - 5 °C
1.3: 0 - 20 °C
2.1: sodium methylate / tetrahydrofuran; methanol / 2 h / Inert atmosphere; Reflux
2.2: 0.5 h / 5 °C
View Scheme
methyl 3-(N-ethyl-N-phenylamino)-3-oxopropionate
142613-14-7

methyl 3-(N-ethyl-N-phenylamino)-3-oxopropionate

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: water; lithium hydroxide / tetrahydrofuran / 1.5 h / 20 °C
1.2: 0 - 5 °C / pH 2 - 3
2.1: pyridine / dichloromethane / 0.5 h / 20 - 25 °C / Inert atmosphere
2.2: 1 h / 0 - 5 °C
2.3: 0 - 20 °C
3.1: sodium methylate / tetrahydrofuran; methanol / 2 h / Inert atmosphere; Reflux
3.2: 0.5 h / 5 °C
View Scheme
C10H10ClNO4

C10H10ClNO4

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: acetyl chloride / 1,4-dioxane / 10 h / 45 °C / Inert atmosphere; Large scale
2.1: sodium hydride / mineral oil; N,N-dimethyl acetamide / 45 °C / Inert atmosphere
2.2: 2 h / 20 °C / Inert atmosphere
3.1: sodium hydride / mineral oil; N,N-dimethyl acetamide / 7 h / 85 °C / Inert atmosphere
View Scheme
Multi-step reaction with 3 steps
1: acetyl chloride / 1,4-dioxane / 10 h / 45 °C / Inert atmosphere; Large scale
2: potassium carbonate / N,N-dimethyl-formamide / 72 h / 20 °C / Inert atmosphere; Large scale
3: sodium hydride / mineral oil; N,N-dimethyl acetamide / 7 h / 85 °C / Inert atmosphere
View Scheme
Multi-step reaction with 4 steps
1.1: acetyl chloride / 1,4-dioxane / 10 h / 45 °C / Inert atmosphere; Large scale
2.1: sodium hydride / mineral oil; N,N-dimethyl acetamide / 45 °C / Inert atmosphere
2.2: 2 h / 20 °C / Inert atmosphere
3.1: mineral oil; N,N-dimethyl acetamide / 5 h / 85 °C / Inert atmosphere
4.1: n-heptane; octane / 5 h / 112 °C / Inert atmosphere; Large scale
View Scheme
5-chloro-N-methylisatoic anhydride
40707-01-5

5-chloro-N-methylisatoic anhydride

methyl 3-(N-ethyl-N-phenylamino)-3-oxopropionate
142613-14-7

methyl 3-(N-ethyl-N-phenylamino)-3-oxopropionate

laquinimod
248281-84-7

laquinimod

Conditions
ConditionsYield
With sodium hydride In N,N-dimethyl acetamide; mineral oil at 85℃; for 7h; Inert atmosphere;110 g
laquinimod
248281-84-7

laquinimod

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

Conditions
ConditionsYield
In water; toluene at 140℃; for 4h;100%
Multi-step reaction with 2 steps
1: toluene; H2O / 1 h / 100 °C
2: 98 percent / dimethylsulfoxide / 1.5 h / 70 °C
View Scheme
laquinimod
248281-84-7

laquinimod

N-ethyl-N-phenyl-5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxamide calcium salt

N-ethyl-N-phenyl-5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxamide calcium salt

Conditions
ConditionsYield
With calcium acetate In ethanol; water at 70℃; for 0.5h;98%
laquinimod
248281-84-7

laquinimod

5-chloro-N-ethyl-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-N-phenyl-3-quinolinecarboxamide sodium salt

5-chloro-N-ethyl-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-N-phenyl-3-quinolinecarboxamide sodium salt

Conditions
ConditionsYield
With sodium hydroxide In ethanol; water for 1.75h; Inert atmosphere; Large scale;95%
With sodium methylate In methanol at 20 - 30℃;94%
With sodium hydroxide In ethanol; water at 20℃; for 6.58333h; pH=8 - 12;90%
laquinimod
248281-84-7

laquinimod

1H,3H-spiro[5-chloro-1-methylquinoline-2,4-dione-3,3'-[1]ethylindolin-[2]-one]

1H,3H-spiro[5-chloro-1-methylquinoline-2,4-dione-3,3'-[1]ethylindolin-[2]-one]

Conditions
ConditionsYield
With ammonium cerium (IV) nitrate; acetic acid In ethanol at 20℃; for 1h;95%
L-lysine
56-87-1

L-lysine

laquinimod
248281-84-7

laquinimod

laquinimod L-lysine salt

laquinimod L-lysine salt

Conditions
ConditionsYield
In methanol Solvent;92.7%
aniline
62-53-3

aniline

laquinimod
248281-84-7

laquinimod

ABR-215174

ABR-215174

Conditions
ConditionsYield
In toluene at 100℃; for 1h;92%
laquinimod
248281-84-7

laquinimod

N-ethyl-N-phenyl-5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxamide iron (III) salt

N-ethyl-N-phenyl-5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxamide iron (III) salt

Conditions
ConditionsYield
With iron(III) sulfate In chloroform; water at 40℃;85%
cholin hydroxide
123-41-1

cholin hydroxide

laquinimod
248281-84-7

laquinimod

laquinimod choline hydroxide salt
1609005-03-9

laquinimod choline hydroxide salt

Conditions
ConditionsYield
In methanol for 0.166667h; Solvent;76.3%
methanol
67-56-1

methanol

laquinimod
248281-84-7

laquinimod

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester
637027-41-9

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester

Conditions
ConditionsYield
at 100℃; for 0.1h; microwave irradiation;
methanol
67-56-1

methanol

laquinimod
248281-84-7

laquinimod

A

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

B

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester
637027-41-9

1,2-dihydro-4-hydroxy-5-chloro-1-methyl-2-oxo-quinoline-3-carboxylic acid methyl ester

C

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid
335640-50-1

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
With water; trifluoroacetic acid In dimethyl sulfoxide; acetonitrile at 50℃; for 2h; Kinetics;
propan-1-ol
71-23-8

propan-1-ol

laquinimod
248281-84-7

laquinimod

A

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

B

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid n-propyl ester

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid n-propyl ester

C

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid
335640-50-1

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
With water; trifluoroacetic acid In dimethyl sulfoxide; acetonitrile at 50℃; for 2h; Kinetics; Further Variations:; reaction partner content;
ethanol
64-17-5

ethanol

laquinimod
248281-84-7

laquinimod

A

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

B

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid
335640-50-1

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid

C

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid ethyl ester
248282-10-2

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid ethyl ester

Conditions
ConditionsYield
With water; trifluoroacetic acid In dimethyl sulfoxide; acetonitrile at 50℃; for 2h; Kinetics; Further Variations:; Reagents;
isopropyl alcohol
67-63-0

isopropyl alcohol

laquinimod
248281-84-7

laquinimod

A

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

B

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid isopropyl ester

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid isopropyl ester

C

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid
335640-50-1

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
With water; trifluoroacetic acid In dimethyl sulfoxide; acetonitrile at 50℃; for 2h; Kinetics;
laquinimod
248281-84-7

laquinimod

A

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxoquinoline

B

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid
335640-50-1

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
In water; toluene at 100℃; for 1h;
laquinimod
248281-84-7

laquinimod

5-chloro-1,2-dihydro-4-methoxy-1-methyl-2-oxo-3-quinolinecarboxylic acid methyl ester

5-chloro-1,2-dihydro-4-methoxy-1-methyl-2-oxo-3-quinolinecarboxylic acid methyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 0.1 h / 100 °C / microwave irradiation
2: 37 percent / DBU / N,N-dimethyl-acetamide / 20 h / 20 °C
View Scheme
laquinimod
248281-84-7

laquinimod

5-chloro-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydroquinoline-3-carboxylic acid methyl ester

5-chloro-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydroquinoline-3-carboxylic acid methyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 0.1 h / 100 °C / microwave irradiation
2: 39 percent / DBU / N,N-dimethyl-acetamide / 20 h / 20 °C
View Scheme
propan-1-ol
71-23-8

propan-1-ol

laquinimod
248281-84-7

laquinimod

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid n-propyl ester

5-chloro-1,2-dihydro-4-hydroxy-1-methyl-2-oxo-3-quinolinecarboxylic acid n-propyl ester

Conditions
ConditionsYield
With hydrogenchloride In water at 45 - 60℃; for 4h; Reactivity;
Reflux;
With hydrogenchloride at 45 - 60℃; for 4h; Reactivity;

248281-84-7Relevant articles and documents

An Efficient Method for the Synthesis of Laquinimod

Huang, Yanyan,Feng, Ying,Gao, Wensheng,Zhang, Chao,Chen, Ligong

, p. 437 - 440 (2016/04/19)

Laquinimod, 5-chloro-1,2-dihydro-N-ethyl-4-hydroxy-1-methyl-2-oxo-N- phenyl-3-quinoline carboxamide, is an oral drug in clinical trials for the treatment of multiple sclerosis. An efficient synthetic method for laquinimod from 2-amino-6-chlorobenzoic acid via four steps was established. The overall yield of laquinimod is up to 82% as compared with 70% reported in literature. It has also been demonstrated that green reagent dimethyl carbonate is not suitable for the N-methylation of 5-chloroisatoic anhydride owing to the ring-cleavage reaction induced by the generated methanol. The ring-cleavage by-products were isolated and characterized by 1H-NMR and 13C-NMR. In addition, in the study of laquinimod derivatives, we found that 5-chloro-1,2-dihydro-N-ethyl-4-hydroxy-1-methyl-2-oxo-N-phenyl-3-quinoline carboxamide (laquinimod) was obtained in much higher yield than 7-chloro-1,2-dihydro-N-ethyl-4-hydroxy-1-methyl-2-oxo-N-phenyl-3-quinoline carboxamide under the same reaction conditions, and it is possibly attributed to a neighboring group effect.

INTERMEDIATE COMPOUNDS AND PROCESSES FOR THE PREPARATION OF QUINOLINE DERIVATIVES SUCH AS LAQUINIMOD SODIUM

-

Page/Page column 27, (2012/06/15)

The present invention relates to processes for the preparation of quinoline-3 -carboxamide derivatives, such as sodium 5-chloro-3-(ethylphenylcarbamoyl)-l-methyl-2- oxo-l,2-dihydroquinolin-4-olate (Laquinimod sodium). The present invention further relates to intermediates formed in such processes.

1,2-DIHYDRO-4-HYDROXY-2-OXO-QUINOLINE-3-CARBOXANILIDES AS AHR ACTIVATORS.

-

Page/Page column 30, (2012/05/04)

The present invention relates to compounds which are 1, 2-dihydro-4- hydroxy-2-oxo-quinoline-3-carboxanilides, their thieno-pyridone analogs, and prodrugs thereof. This invention specifically relates to such derivatives containing an N-hydrogen in the carboxanilide moiety and which exhibit modulating activity towards the aromatic hydrocarbon receptor (AhR), and, specifically, also to prodrugs thereof. The present invention also relates to use of said compounds as a medicament, and for the treatment of cancer, autoimmune disorders and other disorders with an immunological component, and a pharmaceutical composition comprising one or more of said compounds and a method of treatment.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 248281-84-7