allyl (3R,6R,7S)-7-methoxy-3,6,9-trimethyl-12-nitro-10-oxo-2,3,5,6,7,8,9,10-octahydro-4H-benzo[k][1]oxa[4,9]diazacyclododecine-4-carboxylate 在
tin(II) chloride dihdyrate 作用下,
以
甲醇 为溶剂,
以80%的产率得到allyl (3R,6R,7S)-12-amino-7-methoxy-3,6,9-trimethyl-10-oxo-2,3,5,6,7,8,9,10-octahydro-4H-benzo[k][1]oxa[4,9]diazacyclododecine-4-carboxylate