| 摘要 |
Preparing piperidinium compound (I), comprises reacting piperidine compound (II) with an alkylating agent (III) optionally in the presence of a solvent. Preparing piperidinium compound of formula (I), comprises reacting piperidine compound of formula (II) with an alkylating agent of formula (R 3>-X) (III) optionally in the presence of a solvent. R 1>H, alkyl or aryl group, preferably cyclopentyl; R 2>R 1>, preferably CH 3; R 3>R 1>, preferably CH 3; and X : halo, preferably Br. [Image]. |
