The invention relates to a procedure for preparing quetiapine by reaction between a compound of formula (II) and a compound of formula (III), in which X means a leaving group and P a protective group of alcohols resistant to alkaline conditions, in the presence of a base, followed by a step of deprotection and, optionally, obtaining a pharmaceutically acceptable salt thereof. Said procedure permits the obtaining of quetiapine with a high degree of purity under soft temperature conditions, with short reaction times and avoiding the use of toxic solvents.
(Graphic)
该发明涉及一种通过化合物(II)和化合物(III)之间的反应来制备
喹硫平的方法,其中X表示离去基团,P表示对碱性条件具有抗性的醇保护基,存在碱的情况下进行,随后进行去保护步骤,并可选地获得其药学上可接受的盐。该方法在温和的温度条件下、反应时间短、避免使用有毒溶剂的情况下,可以获得高纯度的
喹硫平。(图示)