Asymmetric Synthesis of α,α-Dibranched Propargylamines by Acetylide Additions to N-tert-Butanesulfinyl Ketimines
摘要:
Addition of lithium acetylides prepared from 1-pentyne, phenylacetylene, and trimethylsilylacetylene to diverse N-tert-butanesulfinyl ketimines affords a range of alpha, alpha-dibranched propargyl sulfinamides in generally good yields (up to 87%) and with high diastereoselectivities (up to > 99: 1). Acidic cleavage of the tert-butanesulfinyl group provides the free alpha, alpha-dibranched propargylamines.
Asymmetric Synthesis of α,α-Dibranched Propargylamines by Acetylide Additions to N-tert-Butanesulfinyl Ketimines
摘要:
Addition of lithium acetylides prepared from 1-pentyne, phenylacetylene, and trimethylsilylacetylene to diverse N-tert-butanesulfinyl ketimines affords a range of alpha, alpha-dibranched propargyl sulfinamides in generally good yields (up to 87%) and with high diastereoselectivities (up to > 99: 1). Acidic cleavage of the tert-butanesulfinyl group provides the free alpha, alpha-dibranched propargylamines.
BENZIMIDAZOLE AND AZABENZIMIDAZOLE COMPOUNDS THAT INHIBIT ANAPLASTIC LYMPHOMA KINASE
申请人:Boezio Christiane M.
公开号:US20130217668A1
公开(公告)日:2013-08-22
Compounds of Formula (I) are useful inhibitors of anaplastic lymphoma kinase. Compounds of Formula (I) have the following structure: where the definitions of the variables are provided herein.