The present invention relates to a process for preparing paliperidone from its intermediate 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]-pyrimidin-4-one.
本发明涉及一种从其中间体3-(2-
氯乙基)-6,7,8,9-四氢-9-羟基-2-甲基-4H-
吡咯[1,2-a]-
嘧啶-4-酮制备
帕利哌酮的过程。