7β-Acylamino-3-trifluoromethylsulfonyloxy-1-carba-3-cephem-4-carboxylic acid antibitic compounds, esters and salts thereof, and the corresponding 7-amino and protected 7-amino 1-carbacephalosporins are provided. The 3-trifluoromethylsulfonyloxy-substituted 1-carbacephalosporins also are useful in a process for preparing 3-halo-1-carbacephalosporins which comprises displacing the 3-trifluoromethylsulfonyloxy ester group with halide ion in an aprotic polar solvent.
Process and intermediates for beta-lactam antibiotics
申请人:THE PRESIDENT AND FELLOWS OF HARVARD COLLEGE
公开号:EP0209352B1
公开(公告)日:1991-05-02
EVANS, DAVID A.;SJOGREN, ERIC B.
作者:EVANS, DAVID A.、SJOGREN, ERIC B.
DOI:——
日期:——
CARBACEPHEM BETA-LACTAM ANTIBIOTICS
申请人:Wagman Allan S.
公开号:US20100267686A1
公开(公告)日:2010-10-21
Carbacephem β-lactam antibiotics having the following chemical structures (I) and (II) are disclosed:
including stereoisomers, pharmaceutically acceptable salts, esters and prodrugs thereof, wherein Ar
2
, R
1
, R
2
and R
3
are as defined herein. The compounds are useful for the treatment of bacterial infections, in particular those caused by methicillin-resistant
Staphylococcus
spp.