2,4-二甲基-3-吡咯羧酸乙酯

(E)-3-(5-ethoxycarbonyl-2,4-dimethyl-1H-pyrrol-3-yl)prop-2-enoic acid

1-(4-ethoxycarbonyl-3,5-dimethyl-pyrrol-2-yl)-1-(5-ethoxycarbonyl-2,4-dimethyl-pyrrol-3-yl)-ethane

醋酸

盐酸