(2Z,4E)-methyl 2-azidohexa-2,4-dienoate

1-((2,6-dimethyl-4-oxo-4H-(1)benzopyrano(3,4-d)oxazol-7-yl)oxy)-2-acetoxy-4-methoxy-5,5-dimethyl-3-tetrahydropyranyl 5-methyl-1H-pyrrole-2-carboxylate

2-甲基吡咯

5-甲基吡咯-2-甲酸乙酯

重氮甲烷