Organocatalyzed, enantioselective synthesis of bicyclo-[2.2.2]-octanes containing benzylic, all-carbon quaternary centers
摘要:
Proline aryl sulfonamide-catalyzed, multi-component couplings have been developed for accessing densely functionalized [2.2.2] bicyclic ketones containing up to four contiguous chiral centers including an all-carbon benzylic quaternary center in high enantio- and diastereoselectivity. Application to the bicyclic core of the recently isolated alkaloid kopsonoline is illustrated. (C) 2010 Elsevier Ltd. All rights reserved.
PROCESS OF PREPARING 3-(3-(4-(1-AMINOCYCLOBUTYL)PHENYL)-5-PHENYL-3H-IMIDAZO[4,5-B]PYRIDIN-2-YL)PYRIDIN-2-AMINE
申请人:ArQule, Inc.
公开号:US20150266876A1
公开(公告)日:2015-09-24
The present invention is directed to a processes for the synthesis of 3-(3-(4-(1-aminocyclobutyl)phenyl)-5-phenyl-3H-imidazo[4,5-b]pyridin-2-yl)pyridin-2-amine:
[EN] PROCESS OF PREPARING 3-(3-(4-(1-AMINOCYCLOBUTYL)PHENYL)-5-PHENYL-3H-IMIDAZO[4,5-B]PYRIDIN-2-YL)PYRIDIN-2-AMINE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE 3-(3-(4-(1-AMINOCYCLOBUTYL)PHÉNYL)-5-PHÉNYL-3 H-IMIDAZO [4,5-B]PYRIDIN-2-YL)PYRIDIN -2-AMINE
申请人:ARQULE INC
公开号:WO2015148464A1
公开(公告)日:2015-10-01
The present invention is directed to a processes for the synthesis of 3-(3-(4-(l- aminocyclobutyl)phenyl)-5phenyl-3H-imidazo[4,5-b]pyridin-2-yl)pyridin-2-amine: formula (7).
Organocatalytic radical relay trifunctionalization of unactivated alkenes by a combination of cyano migration and alkylacylation
作者:Jingyi Wang、Yuchan Wang、Jibin Li、Zexuan Wei、Jie Feng、Ding Du
DOI:10.1039/d3cc01625k
日期:——
organocatalytic three-component radical relay trifunctionalization of unactivatedalkenesthrough the combination of remote 1,4-cyano migration and alkylacylation was reported. This protocol features mild reaction conditions, readily available materials, excellent regioselectivity, and capability of late-stage functionalization.