(+/-)-2
c-Hydroxymethyl-9-methoxy-2
t-methyl-(5b
t,11b
c,13a
t)-1,2,4,5,6,7,11b,12,13,13a-decahydro-5b
H-phenanthro[1,2-
d]oxepin-5a
r-ol 在
吡啶 、
chromium(VI) oxide 作用下,
生成
(+/-)-9-methoxy-2t-methyl-(5bt,11bc,13at)-1,4,5,5b,6,7,11b,12,13,13a-decahydro-2H-5ar,2c-oxaethano-phenanthro[1,2-d]oxepin-15-one