Stereoselective allylation of α-hydroxy aldimines and its application to the formal synthesis of (−)-β-conhydrine
作者:Yong-Taek Lee、Changyoung Jung、In-Soo Myeong、Sang-Hyun Lee、Jin-Seok Kim、Won-Hun Ham
DOI:10.1016/j.tet.2017.12.024
日期:2018.1
Stereoselective allylation of N-p-methoxyphenyl (PMP)-substituted α-hydroxy aldimines is described. Several Lewis acids (BF3·OEt2, SnCl4, TiCl4, ZnCl2, and MgBr2·OEt2) were employed to mediate the allylation reactions. The addition of the allyl group generates a new stereocenter and affords the syn vicinal amino alcohol. Formalsynthesis of (−)-β-conhydrine (1) was accomplished via syn-selective allyl
[EN] 2'-CYANO SUBSTITUTED NUCLEOSIDE DERIVATIVES AND METHODS OF USE THEREOF FOR THE TREATMENT OF VIRAL DISEASES<br/>[FR] DÉRIVÉS NUCLÉOSIDES À SUBSTITUTION 2'-CYANO ET LEURS PROCÉDÉS D'UTILISATION POUR TRAITEMENT DE MALADIES VIRALES
申请人:MERCK SHARP & DOHME
公开号:WO2012142093A2
公开(公告)日:2012-10-18
The present invention relates to 2'-Cyano Substituted Nucleoside Derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein B, X, R1, R2 and R3are as defined herein. The present invention also relates to compositions comprising at least one 2'-Cyano Substituted Nucleoside Derivative, and methods of using the 2'-Cyano Substituted Nucleoside Derivatives for treating or preventing HCV infection in a patient.