(1S,5R,6R)-4-[1-{3-[Dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-phenyl}-meth-(Z)-ylidene]-6-formyl-2-oxo-3,8-diaza-bicyclo[3.2.1]octane-8-carboxylic acid benzyl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
以59%的产率得到(1S,5R,6R)-4-[1-{3-[Dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-phenyl}-meth-(Z)-ylidene]-6-hydroxymethyl-2-oxo-3,8-diaza-bicyclo[3.2.1]octane-8-carboxylic acid benzyl ester