Synthesis of olivanic acid analogues. Preparation of 7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylates containing the 3-(2-acetamidoethenylthio) side chain
作者:Andrew J. G. Baxter、Roger J. Ponsford、Robert Southgate
DOI:10.1039/c39800000429
日期:——
2-Acetamidoethenylthioesters have been prepared from 4-carboxymethylazetidin-2-one and cyclised via an intramolecular Wittig reaction to provide 3-(2-acetamidoethenylthio)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylates, closely related analogues of the naturally occurring antibiotic MM 13902 (1).