S-[3-[(1S,4R,5R,6S)-6-(4-chlorophenyl)-3-formyl-5-nitro-4-phenylcyclohex-2-en-1-yl]propyl] ethanethioate                                                                                                                                                              在
                                                                                                                                                                                 
potassium carbonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以40%的产率得到(4aR,5S,6R,7S,8S,8aR)-5-(4-chlorophenyl)-6-nitro-7-phenyl-3,4,4a,5,6,7,8,8a-octahydro-2H-thiochromene-8-carbaldehyde