(1R,2R,3R,4S,4aR,7S,8aR)-2,4-Bis-benzyloxy-5-(1-hydroxy-ethyl)-3-methyl-1,2,3,4,4a,7,8,8a-octahydro-naphthalene-1,7-diol                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate   、                                                                                                  mercuric trifluoroacetate                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 
(S)-1-((1S,3R,4R,5R,6R,7S,8R)-4,6-Bis-benzyloxy-5-methyl-2-oxa-tricyclo[5.4.0.03,8]undec-10-en-1-yl)-ethanol   、                                                                                             
(R)-1-((1S,3R,4R,5R,6R,7S,8R)-4,6-Bis-benzyloxy-5-methyl-2-oxa-tricyclo[5.4.0.03,8]undec-10-en-1-yl)-ethanol