(1RS,2RS,1'RS)-1-methoxy-1-ethynyl-2-<(E)-1'-acetoxybut-2'-en-1'-yl>cyclohexane 、 alkaline earth salt of/the/ methylsulfuric acid 在
silica gel 作用下,
生成 (2RS,7SR,8RS,9RS,10RS)-10-methyl-8-acetoxy-2-methoxytricyclo<7.3.0.0
2.7>dodec-1(12)-en-11-one 、 (2RS,7SR,8RS,9SR,10SR)-10-methyl-8-acetoxy-2-methoxytricyclo<7.3.0.0
2.7>dodec-1(12)-en-11-one