(6R,7R)-7-tert-Butoxycarbonylamino-8-oxo-3-trifluoromethanesulfonyloxy-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester 、
(E)-1-phthalimido-3-(tributylstannyl)-2-propene 在
tris-(dibenzylideneacetone)dipalladium(0) 、
三(2-呋喃基)膦 zinc(II) chloride 作用下,
以
various solvent(s) 为溶剂,
反应 20.0h,
以73%的产率得到(6R,7R)-7-tert-Butoxycarbonylamino-3-[(E)-3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-propenyl]-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester