[EN] DRUG CONJUGATE, PREPARATION METHOD THEREFOR, AND USE THEREOF<br/>[FR] CONJUGUÉ DE MÉDICAMENT, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 一种药物偶联物、及其制备方法和用途
BRANCHED CHAIN AMINO ACID-DEPENDENT AMINOTRANSFERASE INHIBITORS AND THEIR USE IN THE TREATMENT OF DIABETIC RETINOPATHY
申请人:Warner-Lambert Company LLC
公开号:EP1157000B1
公开(公告)日:2005-11-02
[EN] BRANCHED CHAIN AMINO ACID-DEPENDENT AMINOTRANSFERASE INHIBITORS AND THEIR USE IN THE TREATMENT OF DIABETIC RETINOPATHY<br/>[FR] INHIBITEURS D'AMINOTRANSFERASE ACIDES AMINES-DEPENDANTE A CHAINE RAMIFIEE, ET LEUR UTILISATION DANS LE CADRE DU TRAITEMENT DE LA RETINOPATHIE DIABETIQUE
申请人:WARNER LAMBERT CO
公开号:WO2001042191A1
公开(公告)日:2001-06-14
The present invention is directed to a method for the prophylactic and therapeutic treatment of diabetic retinopathy. The method involves the administration of an inhibitor of formulae (I), (II) and (III) of the branch chain amino acid-dependent aminotransferase (BCAT) pathway to an animal, such as a mammal, in particular a human, in an amount sufficient to treat the retina for diabetic retinopathy prophylactically or therapeutically. The present invention is also directed to several novel inhibitors of formula (IV) of the BCAT pathway. In formulae (I-IV), n, m, X and R1-R13 have the meanings given in the description.
An Efficient Methodology for the Synthesis of 1-(Trimethylammoniummethyl)cyclohexaneacetic Acid Iodide: A Trimethylammonium Iodide Salt of Gabapentin
作者:Morshed A. Chowdhury、Peter A. Smith、Edward E. Knaus
DOI:10.1080/00304940903523991
日期:2010.2.2
ions in the extracellular fluid. For this reason, it was necessary to synthesize a quaternary salt of gabapentin 1. We now describe an efficient methodology for the synthesis of 1-(trimethylammoniummethyl)cyclohexaneacetic acid iodide (2) using a four-step reaction sequence free of time consuming chromatography in 81% overall isolated yield starting from gabapentin (see structures in Scheme 1).