Desulphurative approaches to penem antibiotics. III. Synthesis and desulphurisation of 3-methyl-2-thiacephem-4-carboxylates
作者:Ettore Perrone、Marco Alpegiani、Angelo Bedeschi、Maurizio Foglio、Giovanni Franceschi
DOI:10.1016/s0040-4039(00)81729-3
日期:——
Displacement of leaving groups from a number of 2-oxo-azetidin-4-ylthio derivatives with sulphide or hydrosulphide salts conveniently affords 2-thiacephem, whose desulphurisation gives penems.
用硫化物或氢硫化物盐置换许多2-氧-氮杂环丁烷-4-基硫代衍生物中的离去基团可方便地得到2-噻噻吩,其脱硫得到青霉烯。