1-Bromo-8-tert-butoxycarbonylamino-7-oxo-3-oxa-6-aza-1(1,4),4(1,4)-dibenzaoctaphane 、
4-[Tributylstannyl]phenylacetic acid, methyl ester 在
bis-triphenylphosphine-palladium(II) chloride 作用下,
以
甲苯 为溶剂,
以63%的产率得到Methyl-1-tert-butoxycarbonylamino-3-oxa-2(1,4),5(1,4),6(1,4)-tribenzaheptaphane-7-carboxylate