3,5-二甲基-1H-吡唑-1-甲酰氯

3,5-二甲基吡唑

(3,5-dimethylpyrazol-1-yl)-trimethylsilane

methyl 4-acetoxy-3,5-dimethyl-4,5-dihydro-1H-pyrazole-5-carboxylate