2-[N-(toluene-4-sulfonyl)-N-(prop-2-enyl)amino]-5-phenylpent-4-ynoic acid methyl ester   、                                                                                      alkaline earth salt of/the/ methylsulfuric acid                                                                                                                                                              在
                                                                                                                                                                                 
N-甲基吲哚酮                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 methyl (3S,7aS)-2-(4-methylphenyl)sulfonyl-6-oxo-5-phenyl-3,4,7,7a-tetrahydro-1H-cyclopenta[c]pyridine-3-carboxylate   、