85916-13-8Relevant articles and documents
Preparation method of di-tert-butyl iminodiacetate
-
Paragraph 0040-0073, (2018/07/28)
The invention discloses a preparation method of di-tert-butyl iminodiacetate. The method is characterized in that ammonia and tert-butyl chloroacetate are used as raw materials. The method comprises the following steps: carrying out a reaction between ammonia and tert-butyl chloroacetate based on the molar ratio of 1:(1-6) in an organic solvent under a closed condition, wherein the reaction temperature is 10-65 DEG C, the reaction pressure is normal pressure, and the reaction lasts for 2-10h; after the reaction ends, cooling until the room temperature is reached; filtering; rotatably evaporating the filtrate to remove the organic solvent; then cooling to reach the temperature of 0 DEG C to obtain a solid which is di-tert-butyl iminodiacetate. According to the method, the solvent is nontoxic and free of pollution; the solvent is recycled; no catalyst or cocatalyst is used; the reaction separation method is simple; the di-tert-butyl iminodiacetate yield is high.
Friction modifier and their use in lubricants and fuels
-
Page/Page column 28, (2016/01/09)
A non-aqueous lubricating composition containing a major amount of an oil of lubricating viscosity and a minor amount, in the range of 0.02% to 5% by weight, of at least one compound represented by the structural formula (I): wherein R4 represents H or a C1 to C9 hydrocarbyl group or x, y and z are independently integers in the range 1 to 6; and R1, R2 and R3 each independently represent a C1 to C10 hydrocarbyl or substituted hydrocarbyl group.
GLYCOPEPTIDE AND LIPOGLYCOPEPTIDE ANTIBIOTICS WITH IMPROVED SOLUBILITY
-
, (2012/06/18)
The invention relates to derivatives of glycopeptide and lipoglycopeptide antibiotics possessing an altered ionization state with respect to the parent glycopeptide or lipoglycopeptide antibiotic, and having the ability to be regenerated as the parent gly
Synthesis of metal-chelating lipids to sensitize lanthanide ions
Roy, Bidhan C.,Santos, Marina,Mallik, Sanku,Campiglia, Andres D.
, p. 3999 - 4007 (2007/10/03)
Sensitization of lanthanide ions is important for lanthanide ion-based assays and sensing. To the best of our knowledge, there are very few reports of lanthanide ion sensitization after it is incorporated into the liposome surface. This paper describes the syntheses of several saturated and polymerizable metal-chelating lipids based on chelidamic acid. The lipids are synthesized either from (S)-ornithine or racemic 2,3-diaminopropanoic acid. These lipids as well as polymerized liposomes incorporating these lipids sensitize lanthanide ions. Liposomes from the lipid 18-Eu3+ provided a probe that relies not only on the emission wavelengths of Eu3+ but also on a reproducible lifetime that can be used for protein identification.
SUBSTITUTED PROPIONYL DERIVATIVES
-
, (2008/06/13)
The present invention relates to a compound represented by the following formula (1): [wherein, X1represents a carboxyl group which may be esterified or the like group; Y1represents a single bond, -O- or -N(R1)-; at least one of A1, A2and A3is a group represented by the following formula (2): -R2-a1-R3-a2→{wherein, R2represents a divalent C2-12hydrocarbon group, R3represents a single bond or a divalent C1-12hydrocarbon group, a1and a2individually represent a single bond, -S-, -SO-, -SO2-, -SO2NH-, -O-, -N(R4)-, -CON(R5)-, -C(=O)- or - Si(R6)(R7)- and → means bonding with Q1, Q2or Q3}, the remaining one or two of A1, A2and A3are the same or different and each independently represents a group represented by the following formula (3): -R8-a3-R9-a4→{wherein, R8and R9individually represent a single bond or a divalent C1-12hydrocarbon group, a3and a4individually represent a single bond, -S-, -SO-, -SO2-, -SO2NH-, -O-, - N(R10)-, -CON(R11)-, -C(=O)- or -SI(R12)(R13)- and → means bonding with Q1, Q2or Q3},; at least one of Q1, Q2and Q3represents a cyclic hydrocarbon group or heterocyclic group and the remaining one or two of Q1, Q2and Q3individually represent a hydrogen atom, a carboxyl group which may be esterified, a hydrocarbon group or a heterocyclic group] or salt thereof; and a pharmaceutical comprising the same as an effective ingredient. The compound exhibits strong squalene synthetase inhibitory action and is therefore useful as a pharmaceutical for the treatment·prevention of hypercholesterolemia, hyperlipemia or arteriosclerosis.
Substituted amide derivatives
-
, (2008/06/13)
The present invention relates to a compound of the formula (I): STR1 wherein Ar1, Ar2 and Ar3 represent an aryl group or a heteroaromatic ring group; A represents a hydrocarbon group which may be substituted; Q represents
Carbonyl-containing degradable chelants, uses and compositions thereof
-
, (2008/06/13)
New compounds are represented by Formulas 1 and 2 where Formula 1 is: wherein each of R1, R2, R3, and R4 is independently H, hydroxyalkyl, -C(R6)2COOH or ammonium, amine, or alkali metal salts thereof; R5 is an
N-substituted amides
-
, (2008/06/13)
N-substituted amides which inhibit hydrolysis of elastin, are described, which compounds are tri-and di- fluoromethyl ketone amide and non-naturally occurring n-substituted amino acids derivatives.
TETRAHYDROISOQUINOLINE AMIDES
-
, (2008/06/13)
Tetrahydroisoquinoline amides having the general structure STR1 are disclosed, the substituents defined hereinbelow, which amides are useful in inhibiting human leukocyte and neutrophil elastaes.
Cu(II)-promoted hydrolysis of N-benzoyliminodiacetic acid
Chen, Kuangmin,Wathen, Steven P.,Czarnik, Anthony W.
, p. 6303 - 6306 (2007/10/02)
N-Benzoyliminodiacetic acid experiences Cu(II)-promoted amide hydrolysis interpretable as resulting either from amide N-coordination or O-coordination with intramolecular carboxylate catlysis.