Functionalization of Penicillins via iodine atom transfer chemistry
作者:Carl B. Ziegler、Thomas L. Fields
DOI:10.1016/s0040-4020(01)89907-5
日期:1993.5
Carbon carbon bond formation via iodine atom transfer methodology represents a novel way to functionalize the 6-position of the penicillin nucleus. This work explores the synthetic scope and limitations to reactions of benzhydryl 6α-bromo-6β-iodopenicillanate 4a and its sulfone 4b with olefins.
A new method for assignment of the absolute configuration of the asymmetric carbon atom attached to an amino or imino group using rac.-3-hexadecanoyl-4-methoxycarbonyl-1,3-thiazolidine-2-thione (rac.-HDMTT) (4) is described.
6-Beta-(alpha-etherified oxyimino)-acylamino penicillanic-acid derivatives, their preparation and use
申请人:BEECHAM GROUP PLC
公开号:EP0210815A2
公开(公告)日:1987-02-04
The present invention provides a compound offormula (I) or a pharmaceutically acceptable salt or in-vivo hydrolysable
wherein R' is hydrogen or an amino protecting group and R is substituted methyl; optionally substituted C2-12 alkyl, alkenyl or alkynyl; carbocyclyl; aryl or heterocyclyl. These compounds have antibacterial properties, and therefore are of use in the treatment of bacterial infections in humans and animals caused by a wide range of organisms.