申请人:Syntex (U.S.A.) Inc.
公开号:US05264437A1
公开(公告)日:1993-11-23
The present invention relates to optionally substituted pyrido[2,3-d]pyrimidine-2,4(1H,3H)-diones or optionally substituted pyrido[2,3-d]pyrimidine-2(1H,3H)-ones, i.e., compounds of Formula I: ##STR1## wherein: Y is --CH.sub.2 -- or --C(O)--; R.sup.1 is hydrogen or --(CH.sub.2).sub.n --R.sup.7, wherein: R.sup.7 is aryl or heteroaryl, and n is 1 or 2, provided that when Y is --C(O)--, R.sup.7 is heteroaryl; and R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are hydrogen, or one is selected from lower alkyl, halo, carboxy, methoxycarbonyl, carbamoyl, methylcarbamoyl, di-methylcarbamoyl, methylcarbonyl, methylthio, methylsulfinyl, methylsulfonyl, hydroxymethyl, amino, trifluoromethyl, cyano or nitro; or R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently selected from hydrogen, lower alkyl, nitro, chloro, fluoro, methoxycarbonyl or methylcarbonyl, provided at least one is hydrogen, and R.sup.6 is hydrogen; or a pharmaceutically acceptable ester, ether or salt thereof.
本发明涉及可选择取代的吡啶并[2,3-d]嘧啶-2,4(1H,3H)-二酮或可选择取代的吡啶并[2,3-d]嘧啶-2(1H,3H)-酮,即化合物I的公式:##STR1##
其中:Y是--CH.sub.2--或--C(O)--;R.sup.1是氢或--(CH.sub.2).sub.n--R.sup.7,其中:R.sup.7是芳基或杂环芳基,n为1或2,前提是当Y为--C(O)--时,R.sup.7为杂环芳基;R.sup.2,R.sup.3,R.sup.4,R.sup.5和R.sup.6是氢,或其中一个被选择自较低烷基,卤素,羧基,甲氧基羰基,氨基甲酰,二甲氨基甲酰,甲基甲酰,甲硫基,甲基硫氧基,甲基磺酰基,羟甲基,氨基,三氟甲基,氰基或硝基;或R.sup.2,R.sup.3,R.sup.4和R.sup.5独立选择自氢,较低烷基,硝基,氯,氟,甲氧羰基或甲基羰基,至少一个为氢,而R.sup.6为氢;或其药学上可接受的酯,醚或盐。