A novel pyrimidine derivative having an excellent antitumor activity, which is represented by the following general formula (I) or a pharmacologically acceptable salt thereof: ##STR1## wherein R.sup.1 represents a hydroxyl or amino group; R.sup.2 represents a phenylene, pyridinediyl, thiendiyl furandiyl or thlazoldiyl group --CO.sub.2 R.sup.5 and --CO.sub.2 R.sup.6 may be the same or different from each other and each represents a carboxyl group or a carboxylic acid ester, the part ##STR2## A represents an oxygen atom, a group represented by the formula: ##STR3## (wherein R.sup.3 and R.sup.4 may be the same or different from each other and each represents a hydrogen or halogen atom or a hydrocarbon group which may be substituted, or alternatively R.sup.3 and R.sup.4 may be united to form an alkylidene group which may be substituted) or a group represented by the formula: ##STR4## (wherein R.sup.70 represents a hydrogen atom or a hydrocarbon group), and n is an integer of 1 to 3, provided that the compound in which R.sup.1 represents oxygen, and hydrogen is attached to nitrogen at 3-position is included in the above shown definition, a process for preparation the same, and an antitumor drug containing the same.
具有优异抗肿瘤活性的新型
嘧啶衍
生物,其由以下一般式(I)或其药学上可接受的盐所代表:
##STR1##
其中,R1代表羟基或
氨基;R2代表苯基、
吡啶二基、
噻吩二基、
呋喃二基或
噻唑二基,--CO2R5和--CO2R6可以相同也可以不同,每个均代表羧基或
羧酸酯,部分##STR2## A代表氧原子,代表以下式子的基团:##STR3##
(其中,R3和R4可以相同也可以不同,每个代表氢原子或卤素原子或可被取代的碳氢基团,或者R3和R4可以联合形成可被取代的烷基亚基)或代表以下式子的基团:##STR4##
(其中,R70代表氢原子或碳氢基团),n为1到3的整数,但是在R1代表氧,氢原子连接到3位的氮原子的化合物包括在上述定义中,还包括制备该化合物的方法以及含有该化合物的
抗肿瘤药物。