(4R,12aS)-3,4,6,8,12,12a-六氢-7-羟基-4-甲基-6,8-二氧代-2H-吡啶并[1',2':4,5]吡嗪并[2,1-b][1,3]恶嗪-9-羧酸

ethyl 1-acetyl-4-methyl-5-phenylpyrrole-3-carboxylate

4-((5-(methoxycarbamoyl)-2-methylphenyl)amino)-5-methylpyrrolo[2,1-f][1,2,4]triazine-6-carboxylic acid

ethyl 2,2-dimethyl-4-oxo-3,4-dihydro-2H-pyran-5-carboxylate

diethyl isochelidonate