N-(3-amino-3-iminopropyl)-1-methyl-4-nitro-1H-pyrrole-2-carboxamide hydrochloride

N-(2-cyanoethyl)-1-methyl-4-nitropyrrole-2-carboxamide

2-氨基-4-甲基噻唑-5-羧酸

2-氨基-4-甲基噻唑-5-甲酸乙酯

2-(formylamino)-4-methylthiazole-5-carboxylic acid