2,6,6-trimethyl-4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid

3,6,6-三甲基-4-氧代-4,5,6,7-四氢-1-苯并呋喃-2-羧酸

Ethyl 2-{[(4-aminophenyl)sulfonyl]amino}-4-methyl-1,3-thiazole-5- carboxylate

ethyl (2Z)-2-chloro-2-[(3-nitrophenyl)hydrazinylidene]acetate

2-氯-2-[2-(2-硝基苯基)亚肼基]乙酸乙酯