alkaline earth salt of/the/ methylsulfuric acid 在
N-溴代丁二酰亚胺(NBS) 作用下,
生成 (+/-)-10
t-acetoxy-3
c-bromo-2
t-hydroxy-10
c-methyl-(4a
r,9a
c)-1,2,3,4,4a,9a-hexahydro-anthrone 、
(+-)-10t-acetoxy-2t-bromo-3c-hydroxy-10c-methyl-(4ar,9ac)-1,2,3,4,4a,9a-hexahydro-anthrone