β-Lactam synthesis: Cyclization versus 1,2-acyl migration-cyclization. The mechanism of the 1,2-acyl migration-cyclization
作者:Jollie D Godfrey、Richard H Mueller、Derek J Von Langen
DOI:10.1016/s0040-4039(00)84644-4
日期:1986.1
The cyclization of hydroxamate unexpectedly afforded two isomeric β-lactams and . The mechanism for the formation of has been shown by carbon-13 labeling to involve a novel 1,2-acyl migration-cyclization process.
Pharmaceutically acceptable salts of [3S(Z)]-2-[[[1-(2-amino-4-thiazolyl)-2-[[2,2-dimethyl-4-oxo-1-(sulfooxy)-3 -azetidinyl]amino]-2-oxoethylidene]amino]oxy] acetic acid and a process useful in the preparation of such salts are disclosed herein.
Monobactam compounds and a use therefor. Specifically provided are chemical compounds represented by formula (I) or isomers, pharmaceutically acceptable salts, solvates, crystals, or prodrugs thereof, preparation methods therefor, pharmaceutical compositions containing said compounds, and a use of said compounds or compositions in treating bacterial infection. The present compounds feature excellent antibacterial activity, and have great hopes of becoming a therapeutic agent for bacterial infection.