| 摘要 |
A process for preparing N-(2-pyrimidyl) piperazilyl alkyl azaspyro alkanedione of formula (I) and its salt comprises (a) reacting a cpd. of formula (II) with a cpd. of formula (II) in the presence of triethyl amine or diethyl amine to produce a cpd. of formula (IV), and (b) reacting the cpd. (IV) with a cpd. of formula (V). In the formulas, M is an alhali metal such as Na or K; R is a lower alkyl. (I) and its salt are used as a neuroleptic.
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