(5Z)-5-[(2S,2aR,6S,7aS,7bR,8R,9S)-hexahydro-7b-[[[[(1,1-dimethylethoxy)carbonyl]amino][[(1,1-dimethylethoxy)carbonyl]imino]methylamino]methyl]-9-methyl-4H-2,2,6-(epoxy[1]propanyl[3]ylidene)furo[2,3,4-gh]pyrrolizin-10-ylidene]-4-methoxy-3-methyl-2(5H)-furanone                                                                                                                                                              在
                                                                                                                                                                                 
三氟乙酸   、                                                                                                  
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷   、                                                                                         
乙醚                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以52%的产率得到(5Z)-5-[(2S,2aR,6S,7aS,7bR,8R,9S)-hexahydro-7b-[[(aminoiminomethyl)methylamino]methyl]-9-methyl-4H-2,2,6-(epoxy[1]propanyl[3]ylidene)furo[2,3,4-gh]pyrrolizin-10-ylidene]-4-methoxy-3-methyl-2(5H)-furanone hydrochloride