methyl 1-methyl-5-nitropyrazole-3-carboxylate

2-methyl-5-nitro-2H-pyrazole-3-carboxylic acid methyl ester

5-carbomethoxy-3-(2,5-dimethylpyrrolyl)-1-methylpyrazole

methyl 2-methyl-5-(phenylmethoxycarbonylamino)pyrazole-3-carboxylate

1,3,5-吡唑-3,5-二羧酸三甲酯