4-甲苯磺酰氰   、                                                                                      
(3a'R,6a'S)-5,5-dimethyltetrahydro-1'H-spiro[1,3-dioxane-2,2'-pentalen]-5'(3'H)-one                                                                                                                                                              在
                                                                                                                                                                                 
lithium [R(R*,R*)]-(+)-bis(α-methylbenzyl)amide   、                                                                                                  sodium tetrahydroborate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃   、                                                                                         
正己烷   、                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 6.67h,
                                                                                                                生成                                                 
(+)-(3a'S,4'R,5'R,6a'R)-[4'-cyanooctahydro-5,5-dimethylspiro[1,3-dioxan-2,2'(1'H)-pentalene]]-5-ol   、                                                                                             
(+)-(3a'S,4'S,5'R,6a'R)-[4'-cyanooctahydro-5,5-dimethylspiro[1,3-dioxan-2,2'(1'H)-pentalene]]-5-ol   、                                                                                             (-)-(3a'R,4'R,5'S,6a'S)-[4'-cyanooctahydro-5,5-dimethylspiro[1,3-dioxan-2,2(1'H)-pentalene]]-5-ol   、                                                                                             (-)-(3a'R,4'S,5'S,6a'S)-[4'-cyanooctahydro-5,5-dimethylspiro[1,3-dioxan-2,2'(1'H)-pentalene]]-5-ol