Expedient syntheses of indolizidines (−)-167B and (−)-209D
摘要:
Indolizidine alkaloids (+/-)-167B and (-)-209D were synthesized via an expedient route using hydroacylation and amination. (C) 2001 Published by Elsevier Science Ltd.
[EN] ALPHA-HYDROXY PHENYLACETIC ACID PHARMACOPHORE OR BIOISOSTERE MCL-1 PROTEIN ANTAGONISTS<br/>[FR] PHARMACOPHORES D'ACIDE ALPHA-HYDROXY PHÉNYLACÉTIQUE OU ANTAGONISTES DE LA PROTÉINE BIO-ISOSTÈRE MCL-1
申请人:AMGEN INC
公开号:WO2019173181A1
公开(公告)日:2019-09-12
Provided herein are myeloid cell leukemia 1 protein (Mcl-1) inhibitors, methods of their preparation, related pharmaceutical compositions, and methods of using the same. For example, provided herein are compounds of Formula I, or a stereoisomer thereof; and pharmaceutically acceptable salts thereof and pharmaceutical compositions containing the compounds. The compounds and compositions provided herein may be used, for example, in the treatment of diseases or conditions, such as cancer.
Diastereofacial selectivity in the α-allylation reaction of chiral cyclic α-acyloxy amide, derived from succinic anhydride and (R)-2-methoxy-1-phenylethylamine could be regulated using appropriately selected Lewis acids; i.e., the reaction using Lewis acids such as TiCl4 gave (R,S)-α-allylated amides, while allylation promoted by SnCl4 afforded (R,R)-isomers stereoselectively. The similar result was obtained in the reaction of chiral amide prepared from phthalic anhydride.
corresponding ϵ-lactam was also formed in 38 % yield. When N-(2-fluoroallyl) derivatives were used instead of fluoroacryloyl derivatives, six-, seven-, and eight-membered N-heterocycles were obtained in low yields. This method was also used to synthesize fluorinated α,β-unsaturated analogues of pyrrolizidine and indolizidine alkaloids from prolinol, and also to synthesize N-benzyl-3-fluoroquinolone in
A general, enantioselective synthesis of 1-azabicyclo[m.n.0]alkane ring systems
作者:Timothy J. Senter、Michael L. Schulte、Leah C. Konkol、Tyler E. Wadzinski、Craig W. Lindsley
DOI:10.1016/j.tetlet.2013.01.041
日期:2013.3
In this Letter, we describe a novel approach for the general and enantioselectivesynthesis of a diverse array of small to large 1-azabicyclo[m.n.0]alkyl ringsystems with an embedded olefin handle for further functionalization. The stereochemistry is established via a highly diastereoselective indium-mediated allylation of an Ellman sulfinimine in greater than 9:1 dr, which is readily separable by