Process for the separation of enantiomers of an amino acid comprises treating the racemic mixture of the amino acid with glutaric anhydride and then with glutaryl 7-ACA acylase, recovering one of the enantiomers as the amino acid and the other as the corresponding glutaryl amide.クリストフサラ...
afree form l-amino acid formula high in branch chain amino acids 自由形态l氨基酸惯例高在支链氨基酸[translate] aLibraries, along with other types of organizations,, are currently facing a massive process of transformation and scrutiny of their functioning model. 图书馆,与组织一起的其他类型,当前面对...
In the 1940s, maggots took an extended leave, replaced on the frontline of infection management by the sulfa drugs and then penicillin. In cases of drug- resistant infections, however, they were called up and, without fanfare or publicity, did what was asked of them. In 1976, they briefly...
An efficient synthesis pathway for 4-carboxyrhodamines is still lacking. We present a facile protecting-group-free 4-carboxyrhodamines’ synthesis based on the nucleophilic addition of lithium dicarboxybenzenide to the corresponding xanthone. This approach drastically reduces the number of synthesis steps...
Production mannered null below-mentioned general formula (i) of hydroxystyrenePROBLEM TO BE SOLVED: To provide a method by which a hydroxystyrene derivative and an acetoxystyrene derivative are simply produced in high yield without using a... 細田 朝夫,森一,三宅 靖仁,... 被引量: 0发表: 201...
Prodrugs of excitatory amino acids This invention relates to synthetic excitatory amino acid prodrugs of the formula I wherein R is CO2R and R is hydrogen or fluoro; or R is hydrogen or flu... LC Eli 被引量: 18发表: 2003年 ChemInform Abstract: General Synthesis of α-Acetoxy Ethers from...
This increased risk applies across all types of alcoholic beverage. Mechanism: Ethanol (the alcohol component in an alcoholic drink) is eliminated from the body by its oxidation first to acetaldehyde and then to acetate. While ethanol itself is not mutagenic, acetaldehyde is both carcinogenic and...
The present invention relates to 17α-Alkyl-17-oxy-estratrienes with general formula I: wherein Hal stands for F or Cl, and is bonded to the estratriene skeleton in 113- position, R3 stands for hydrogen, C1-C4-alkyl, C1-C4-alkanoyl or a cyclic C3-C7-ether with an 0 atom, R1...
Chemical/biochemical pocket companion designed by the editors of Current Protocols. Type in or copy/paste any nucleic acid base sequence, any protein or peptide amino acid sequence (in one- or three-letter codes accessible from a convenient menu), or any standard chemical formula, and obtain...
An aqueous coating composition containing in admixture a water soluble polyester, a water soluble orthoamic acid diamine and minor amounts of other water soluble polymeric coating materials. The water