吡唑-3-羧酸甲酯

1-acetyl-1H-pyrazole-3-carboxylic acid methyl ester

1-(1-methoxycarbonyl-cyclopropyl)-1H-pyrazole-3-carboxylic acid methyl ester

[1,1'-Bi-1H-pyrazole]-3,3'-dicarboxylic acid, 4,5-dihydro-, dimethyl ester

1-acetyl-3-methoxycarbonyl-2-pyrazoline