diphenylmethyl 9,10-bis(isopropylthio)-5-cyano-8,11-dimethoxy-7-(hydroxymethyl)-13-methyl-1,2,3,4,5,7,12,12a-octahydro-1,4-iminoazepino<1,2-b>isoquinoline-2-carboxylate 在
苯甲醚 、
三氟乙酸 作用下,
以83.7%的产率得到9,10-bis(isopropylthio)-5-cyano-8,11-dimethoxy-7-(hydroxymethyl)-13-methyl-1,2,3,4,5,7,12,12a-octahydro-1,4-iminoazepino<1,2-b>isoquinoline-2-carboxylic acid