88678-31-3 Usage
Description
Liranaftate is a potent and specific inhibitor of squalene epoxidase, a key enzyme in the biosynthesis of ergosterol in fungi. It belongs to the thiocarbamate class of antifungals and is prepared by condensation of 5,6,7,8-tetrahydro-2-naphthol with the corresponding N-pyridylthiocarbamoyl chloride. Liranaftate was launched in Japan as a new topical antifungal for the treatment of dermatophycoses and has no detectable effect on mammalian cholesterol biosynthesis in rat liver at therapeutic dose levels.
Uses
Used in Dermatology:
Liranaftate is used as a topical antifungal agent for the treatment of dermatophycoses, a group of skin infections caused by fungi. It is effective against several dermatophytes, including Trichophyton mentagrophytes, and certain yeasts, such as Cryptococcus neoformans. When applied as a 1 or 2% cream during clinical trials, it was well tolerated and showed no systemic absorption.
Used in Antifungal Therapy:
Liranaftate is used as a squalene epoxidase inhibitor, which blocks ergosterol biosynthesis in fungi, making it an effective antifungal agent. Its specificity for fungal squalene epoxidase and lack of effect on mammalian cholesterol biosynthesis contribute to its safety and efficacy in treating fungal infections.
The third generation of dithiocarbamate antifungal
Liranaftate is a new king of third-generation dithiocarbamate antifungals , it is a new kind of the third category of chemicals,it belongs to squalene cyclooxygenase inhibitors, by inhibiting the fungal cell membrane squalene epoxidation reaction , it hinders the synthesis of ergosterol which is a constituent of cell membranes ,it plays the role of anti-fungal,its anti-fungal activity is 8 times of tolnaftate, and its dermatophytes effect is better than clotrimazole. It has a strong anti-fungal effect on skin filamentous fungi (Trichophyton,Microsporon, Epidermophyton) , it also shows antifungal activity on other filamentous fungi, dark fungi, dimorphic fungi.It is useful in the treatment of tinea capitis, ringworm, athlete's foot, tinea pedis, onychomycosis, tinea, jock itch, tinea versicolor and vulvovaginal candidiasis.
Toxicity
Reproductive toxicity: in general reproductive toxicity tests, subcutaneous administration to SD rats , the largest non-toxic dose for the parent is 20mg/kg, the largest non-toxic dose for the reproductive process and their pups is 100mg/kg.
Genetic Toxicity: Liranaftate mutagenicity tests are negative.
In toxicity tests during teratogenic sensitively period , subcutaneous administration ,the largest non-toxic dose of maternal is 300mg/kg, the largest non-toxic dose to fetal rats is100mg/kg.
In perinatal toxicity tests, administer subcutaneously, the largest non-toxic dose for the mother and newborn pups is 30mg/kg.
The above information is edited by the lookchem of Tian Ye.
Synthesis method
5,6,7,8-tetrahydro-2-naphthol reacts with thiophosgene to give the thio-5,6,7,8-tetrahydro-2-naphthyl chloroformate ester and 2-methoxy-6-methylamine pyridine, then react in isopropanol · water at room temperature for 2 hours to obtain liranaftate ,the overall yield is 70%.
Liranaftate cream
Liranaftate cream is a relatively safe topical antifungal formulation . In mutagenicity studies we found that no matter in chromosome aberration tests, or in the bone marrow micronucleus tests, Liranaftate cream has no effect on inducing cell chromosome aberrations , and it has no effect on bone marrow cell proliferation. It is used for the treatment of ringworm, athlete's foot, ringworm, jock itch, tinea versicolor and vulvovaginal candidiasis. Domestic manufacturers include: Chen Xin Shandong Lukang Pharmaceutical Co., Ltd. (Country medicine accurate words H20052287), Beijing Sihuan Pharmaceutical Technology Co., Ltd. Beijing Shengde Lai Bao Pharmaceutical Co., Ltd., Jiangsu zhongdan Pharmaceutical Co., Ltd.( Country medicine accurate words H20052733 ),Henan Tian Fang Pharmaceutical Co., Ltd. (Country medicine accurate words H20052552), and Nanjing Shenghe Pharmaceutical Co., Ltd. (Country medicine accurate words H20052554), Shideda Pharmaceutical (Beijing) Co., Ltd. (Country medicine accurate words H20052742), Kunshan Reddy pharmaceutical Co., Ltd. (Country medicine accurate words H20052345), Hugang Xinya pharmaceutical (Yangzhou) Co., Ltd. (Country medicine accurate words H20070143), Shandong Weigao pharmaceutical Co., Ltd. (Country medicine accurate words H20070073), Yangtze River pharmaceutical Group Co., Ltd. ( Country medicine accurate words H20080036), Heyuante Fukang pharmaceutical Co., Ltd. (Country medicine accurate words H20080162), Shandong Liangfu pharmaceutical Co., Ltd. (Country medicine accurate words H20080187)
Originator
Tosoh (Japan)
Check Digit Verification of cas no
The CAS Registry Mumber 88678-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,6,7 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 88678-31:
(7*8)+(6*8)+(5*6)+(4*7)+(3*8)+(2*3)+(1*1)=193
193 % 10 = 3
So 88678-31-3 is a valid CAS Registry Number.
InChI:InChI=1/C18H20N2O2S/c1-20(16-8-5-9-17(19-16)21-2)18(23)22-15-11-10-13-6-3-4-7-14(13)12-15/h5,8-12H,3-4,6-7H2,1-2H3
88678-31-3Relevant articles and documents
METHOD FOR PRODUCING THIOCARBAMATE DERIVATIVE
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, (2008/06/13)
An O-aryl N-(6-alkoxy-2-pyridyl)-N-alkylthiocarbamate represented by the following formula (I): (wherein R1, R2 and Ar are as defined below) is produced by treating a phenol represented by the following general formula (IV): ????????Ar-OH?????(IV) (wherein Ar represents an aryl group) with a base in a solvent and then adding thereto an alkali metal salt of N-(6-alkoxy-2-pyridyl)-N-alkyldithiocarbamic acid represented by the following general formula (III): (wherein R1 and R2 independently represent a C1-C4 alkyl group and M represents an alkali metal) and a halomethane represented by the following general formula (V): ????????CH2XmYn?????(V) (wherein X and Y represent different halogen atoms, m represents 0, 1 or 2, n represents 0, 1 or 2, and m + n equals 2) for causing a reaction.
