(+-)-7-methoxy-1-methyl-(10ar)-1,2,3,9,10,10a-hexahydro-phenanthrene-1t,2t-dicarboxylic acid 在
sodium hydroxide 、 palladium on activated charcoal 、
溶剂黄146 作用下,
生成 (+/-)-7-methoxy-1
c-methyl-(4a
rH.10a
cH)-1.2.3.4.4a.9.10.10a-octahydro-phenanthrene-dicarboxylic acid-(1
t.2
c)-1-methyl ester