Chiral iminophosphorane catalyzed asymmetric sulfenylation of 2-substituted alkylcyanoacetates
作者:Yanxia Zhang、Henry N.C. Wong、Xin-Yan Wu、Jianwei Han
DOI:10.1016/j.tetlet.2020.151755
日期:2020.4
Chiral iminophosphorane organocatalysis enables a wide range of asymmetric transformations with excellent level of enantioselectivity. Herein, an asymmetric sulfenylation of 2-substituted alkylcyanoacetates was achieved with tartaric acid derived chiral iminophosphoranes in an efficient manner. The iminophosphorane catalyst exhibits high catalytic activity, and as a result, the corresponding sulfenylated
A facile protocol was developed for the combinatorial synthesis of furo[2,3-d]pyrimidinone and pyrrolo[2,3-d]pyrimidinone library via a one-pot condensation, from 2-amino furans/pyrroles. Herein reported process required a similar reaction condition, providing mild access to two diverse series of natural product-like heterocycles. Both furo[2,3-d]pyrimidinones and pyrrolo[2,3-d]pyrimidinones were evaluated
开发了一种简便的方案,用于通过一锅缩合从 2-氨基呋喃/吡咯组合合成呋喃并[2,3- d ]嘧啶酮和吡咯并[2,3- d ]嘧啶酮库。本文报道的过程需要类似的反应条件,提供温和地获得两种不同系列的天然产物样杂环。呋喃并[2,3- d ]嘧啶酮和吡咯并[2,3- d ]嘧啶酮均针对一组人类癌细胞系进行了体外评估,包括针对人类癌症HeLa(宫颈)、MCF-7(乳腺癌)和HT- 29(结肠)细胞系。衍生物12n ((2-(4-氯苯基)-1-甲基-6,7,8,9-四氢吡啶并[1,2- a ]吡咯并[2,3- d ]嘧啶-4(1H ) -酮) ) 对 HeLa 细胞系表现出高活性 (IC 50 = 6.55 ± 0.31 µM)。这些产品可以进行各种修饰,因此代表了抗癌药物发现的重要骨架。 图形概要
[EN] FURAN DERIVATIVES AND THEIR USE AS ANTIVIRAL AGENTS<br/>[FR] DÉRIVÉS DU FURANNE ET LEUR UTILISATION COMME AGENTS ANTIVIRAUX
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2007147794A1
公开(公告)日:2007-12-27
[EN] Anti-viral agents of compounds of Formula (Ia) : wherein A, R1, R2 and R3 are as defined in the specification, processes for their preparation and their use in HCV treatment are provided. [FR] L'invention concerne des agents antiviraux incluant des composés représentés par la formule (Ia) : dans laquelle A, R1, R2 et R3 sont tels que définis dans la description, des procédés permettant de les préparer et leur utilisation dans le traitement du virus de l'hépatite C (HCV).