Substituted pyrimidin-2-ones, the salts thereof, processes for their preparation, pharmaceutical compositions containing them and a method therefor
申请人:GLAXO GROUP LIMITED
公开号:EP0044705A1
公开(公告)日:1982-01-27
Compounds of the general formula:-
(wherein X represents a halogen atom or a trifluoromethyl group; R' represents a hydrogen atom or a.lower alkyl group and Het represents an optionally substituted C-attached 5-7 membered aromatic heterocyclic ring which ring contains one or more heteroatoms selected from 0, N and S and optionally carries a fused ring) and where a basic group is present, the salts thereof have been found to possess excellent metaphase arresting ability and are of use in combating abnormal cell proliferation. Thus a knowledge of the cell division cycles of the normal and abnormal cells enables a cytotoxic drug to be administered whilst the abnormal cells are in a phase susceptible to attack and whilst the normal cells are in a non-susceptible phase.
The compounds of the invention are prepared by alkylation, deprotection of a protected keto group, oxidation or electrophilic halogenation.
通式如下的化合物
(其中 X 代表卤素原子或三氟甲基;R'代表氢原子或低级烷基;Het 代表任选取代的 C 连接的 5-7 位芳香杂环,该环含有一个或多个选自 0、N 和 S 的杂原子,并任选带有一个融合环),在存在碱性基团的情况下,发现其盐类具有优异的分裂期抑制能力,可用于抑制异常细胞增殖。因此,了解了正常细胞和异常细胞的细胞分裂周期,就可以在异常细胞处于易受攻击阶段而正常细胞处于非易受攻击阶段时施用细胞毒性药物。
本发明的化合物是通过烷基化、受保护酮基的脱保护、氧化或亲电卤化等方法制备的。