(Z)-1-acetylamino-3-bromo-prop-2-ene-1,1,3-tricarboxylic acid triethyl ester

5-甲酰基吡唑-3-甲酸乙酯

2-ethoxycarbonyl-4H-benzo(b)(1,4)thiazine

ethyl 2-formyl-phenyl-acetate