abstract |
Process for preparing salts of 2- [2- (4-dibenzo [b, f] [1,4] thiazepin-11-yl-1-piperazinyl) ethoxy] ethanol (quetiapine) from quetiapine base and the corresponding acid, where the salt is precipitated from a solvent mixture which is either a mixture of toluene and acetone or ethyl acetate, or toluene, water and acetone or ethyl acetate. |