Methods of manufacture of 2'-deoxy-beta-L-nucleosides
申请人:——
公开号:US20040266996A1
公开(公告)日:2004-12-30
The present invention relates to the synthesis of 2′-deoxy-&bgr;-L-thymidine, 2′-deoxy-&bgr;-L-uridine and 2′-deoxy-&bgr;-L-cytidine, and their derivatives, such as the 3′-O-acyl or 3′,5′-O-diacyl prodrugs, including the 3′-O-L-aminoacyl and 3′,5′-O-L-diaminoacyl prodrugs, and particularly the 3′-O-L-valinyl and 3′,5′-O-L-divalinyl prodrugs.
Regioselective and stereocontrolled syntheses of protected L-glycosides from L-arabinofuranosides
作者:Grigorii G. Sivets
DOI:10.1016/j.carres.2019.107901
日期:2020.2
method for selective 3(2)-O-acylation of 5-O-silyl (trityl) l-arabinofuranosides was investigated based upon generation of organoboron compounds using l-Selectride and subsequent reaction of salt carbohydrate species with pivaloyl or 4-chlorobenzoyl chloride as the electrophile. Syntheses of methyl 2,3-anhydro-l-furanosides were accomplished from selectively protected methyl l-arabinofuranosides. 2(3)-D