(+)-(3aS,4R,7aS)-4-hydroxy-4-(m-tolylethynyl)-octahydro-indole-1-carboxylic acid methyl ester   、                                                                                      
4-(二甲基氨基)丁酸                                                                                                                                                                                                                                                                                                          以to yield (3aR,4S,7aR)-4-(4-dimethylamino-butyryloxy)-4-m-tolylethynyl-octahydro-indole-1-carboxylic acid methyl ester的产率得到(3aR,4S,7aR)-4-(3-dimethylamino-butryloxy)-4m-tolylethynyl-octahydroindole-1-carboxylic acid methyl ester