(+/-)-3-oxo-(4a
r,8a
c)-2,3,4,4a,5,6,7,8,8a,9-decahydro-1
H-cyclopenta[
b]naphthalene-1ξ-carboxylic acid ethyl ester 在
盐酸 、 amalgamated zinc 作用下,
生成
(+/-)-(4ar,8ac)-2,3,4,4a,5,6,7,8,8a,9-decahydro-1H-cyclopenta[b]naphthalene-1ξ-carboxylic acid 、
(+/-)-(4ar,8ac)-2,3,4,4a,5,6,7,8,8a,9-decahydro-1H-cyclopenta[b]naphthalene-1ξ-carboxylic acid ethyl ester