苯基氯化硒 、
(6R)-3-methylene-8-oxo-7t-phthalimido-(6rH)-5-thia-1-aza-bicyclo[4.2.0]octane-2c-carboxylic acid methyl ester 以
四氯化碳 为溶剂,
反应 10.0h,
以87%的产率得到(2S,3R,6R,7R)-3-Chloromethyl-7-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-8-oxo-3-phenylselanyl-5-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid methyl ester