Synthesis of N7-hydroxy- and N7-methoxycephalosporins.
作者:Daijiro Hagiwara、Kozo Sawada、Tetsuo Ohnami、Masashi Hashimoto
DOI:10.1248/cpb.30.3061
日期:——
N7-Hydroxy-(11a, b) and N7-methoxycephalosporins (13a, b) were synthesized from 7-oxocephems (4a, b) via a sequence of reactions involving, as the main steps, oximation [4a, b→5a, b ; 7a, b] and borane reduction [5a, b→6a, b ; 7a, b→8a, b].
N7-Hydroxy-(11a, b) 和 N7-methoxycephalosporins (13a, b) 是由 7-oxocephems (4a, b) 通过一系列反应合成的,这些反应的主要步骤包括氧化[4a, b→5a, b ;7a, b]和硼烷还原[5a, b→6a, b ;7a, b→8a, b]。