(+/-)-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