Substituted pyrimidin-2-ones, the salts thereof, processes for their preparation, and pharmaceutical compositions containing them
申请人:GLAXO GROUP LIMITED
公开号:EP0044704B1
公开(公告)日:1986-05-07
US4636509A
申请人:——
公开号:US4636509A
公开(公告)日:1987-01-13
Substituted pyrimidin-2-ones, the salts thereof, processes for their
申请人:Glaxo Group Limited
公开号:US04636509A1
公开(公告)日:1987-01-13
Compounds of the general formula: ##STR1## (wherein X represents a halogen atom or a trifluoromethyl group; R.sup.1 represents an optionally substituted C.sub.6-10 carbocyclic aromatic group; and R.sup.2 represents a hydrogen atom or a lower alkyl, C.sub.7-16 aralkyl or C.sub.6-10 aryl group or the group COR.sup.1a, in which R.sup.1a is as defined for R.sup.1, R.sup.1 and R.sup.1a being the same or different) and where an acidic or 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 while the abnormal cells are in a phase susceptible to attack and while 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. Pharmaceutical compositions containing the compounds of formula I, and where appropriate, the physiologically compatible salts thereof; and methods for the use of the compounds are described and claimed.