11,13-dimethoxy-5,12-dimethyl-10-triethylsilyloxy-8-(trimethylsilylmethyl)-2,5-diazatetracyclo[7.4.0.02,7.04,6]trideca-1(9),10,12-triene-7,8-diol 在
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
四氢呋喃 、
水 为溶剂,
生成 (4R,6R,7R)-7-hydroxy-11-methoxy-5,12-dimethyl-8-methylidene-2,5-diazatetracyclo[7.4.0.02,7.04,6]trideca-1(9),11-diene-10,13-dione