Compound (II) is reacted with formate in the presence of an alkali metal alkoxide and the like to give compound (III); then this is reacted with compound (IVa) or compound (IVb) to give compound (V); then this is reacted with compound (VI) to give compound (VII); and then this is deprotected to give compound (I).
The present invention provides an industrially advantageous production method of a 4-acetylpyrimidine compound useful as a synthetic intermediate for a pharmaceutical product:
wherein X is a methylthio group and the like, R
1
is a lower alkyl group and the like, R
2
is a lower alkyl group optionally having substituent(s) and the like, M is an alkali metal and X
1
is a halogen atom.
化合物(II)在碱
金属烷氧化物等存在下与
甲酸酯反应,得到化合物(III);然后将其与化合物(IVa)或化合物(IVb)反应,得到化合物(V);然后将其与化合物(VI)反应,得到化合物(VII);最后去保护得到化合物(I)。本发明提供了一种工业上有利的生产方法,用于制备一种4-乙酰基
嘧啶化合物,该化合物可用作制药产品的合成中间体:其中X是甲
硫基等,R1是低碳基等,R2是可选地具有取代基的低碳基等,M是碱
金属,X1是卤素原子。