1R,2S,5R-menthyl 2-(3'-indolylmethyl)-r-2R-methoxycarbonyl-c-5S-<1"-(1'"-ethoxycarbonyl-2'"-oxocyclohexyl)-ethyl>-pyrrolidine-c-4S-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 
对甲苯磺酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 48.0h,
                                                                                                                生成                                                 18-O-ethyl 12-O-methyl 14-O-[(1R,2S,5R)-5-methyl-2-propan-2-ylcyclohexyl] (1S,12R,14S,15S,18R)-3,23-diazahexacyclo[10.10.1.01,18.02,10.04,9.015,23]tricosa-2(10),4,6,8-tetraene-12,14,18-tricarboxylate