[EN] COMPOUNDS AS HEPATITIS C INHIBITORS AND USES THEREOF IN MEDICINE [FR] COMPOSÉS UTILISÉS EN TANT QU'INHIBITEURS DU VIRUS DE L'HÉPATITE C ET LEURS UTILISATIONS EN MÉDECINE
[EN] COMPOUNDS AS HEPATITIS C INHIBITORS AND USES THEREOF IN MEDICINE [FR] COMPOSÉS UTILISÉS EN TANT QU'INHIBITEURS DU VIRUS DE L'HÉPATITE C ET LEURS UTILISATIONS EN MÉDECINE
Efficient Synthesis of (<i>S</i>)-2-(Cyclopentyloxycarbonyl)-amino-8-nonenoic Acid: Key Building Block for BILN 2061, an HCV NS3 Protease Inhibitor
作者:Xiao-jun Wang、Li Zhang、Lana L. Smith-Keenan、Ioannis N. Houpis、Vittorio Farina
DOI:10.1021/op0601924
日期:2007.1.1
A new procedure for the practical synthesis of (S)-2-(cyclopentyloxycarbonyl)amino-8-nonenoic acid, a key building block for BILN 2061, an HCV NS3 protease inhibitor, has been developed. The key step features a kinetic resolution of racemic 2-acetylamino-8-nonenoic acid with acylase I. In addition, the undesired (R)-2-acetylamino-8-nonenoic acid was recycled after racemization. The procedure was implemented for the production of (S)-2-(cyclopentyloxycarbonyl)amino-8-nonenoic acid on pilot-plant scale.