The present invention relates to a method for the synthesis of 1,3-disubstituted quinazolinedione derivatives which comprises: (a) reacting a haloformate functionalized polystyrene resin with a substituted anthranilic acid derivative under conditions effective to form a urethane-linkage; (b) reacting the product of step (a) with a primary amine under conditions effective to form an anthranilamide derivative; (c) heating the anthranilamide to effect intramolecular cyclization thereby liberating the 1,3-disubstituted quinazolinedione derivative from the resin into solution; and (d) isolating the 1,3-disubstituted quinazolinedione by filtration and solvent removal.
本发明涉及一种合成1,3-二取代
喹唑啉二酮衍
生物的方法,包括:(a)在有效条件下,将卤
甲酸酯功能化聚
苯乙烯树脂与取代的
蒽酰
氨衍
生物反应,形成
脲酯键;(b)在有效条件下,将步骤(a)的产物与一种原始胺反应,形成
蒽酰胺衍
生物;(c)加热
蒽酰胺以促使分子内环化,从
树脂中释放出1,3-二取代
喹唑啉二酮衍
生物到溶液中;(d)通过过滤和溶剂去除来分离1,3-二取代
喹唑啉二酮。