反应详情

5-Methyl-1-(1-methyl-piperidin-4-yl)-1H-pyrazole-4-carbaldehyde was prepared from ethyl acetoacetate and (1-methyl-piperidin-4-yl)-hydrazine in the same manner as 5-cyclopropyl-1-isopropyl-1H-pyrazole-4-carbaldehyde (Example 49).