(7-methoxy-2-methyl-1-oxo-1,2,3,4,9,10-hexahydro-[2]phenanthryl)-acetic acid methyl ester 在
1,4-二氧六环 、 palladium on activated charcoal 作用下,
生成 (+/-)-(7-methoxy-1-oxo-2
c-methyl-(4a
rH,10a
tH)-1,2,3,4,4a,9,10,10a-octahydro-phenanthryl-(2
t))-acetic acid