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    • 10. 发明授权
    • 9-(Substituted thio)-4H-pyrido[1,2,-A]pyrimidin-4-one derivatives
    • 9-(取代的硫代)-4H-吡啶并[1,2-a]嘧啶-4-酮衍生物
    • US4840953A
    • 1989-06-20
    • US206665
    • 1988-06-15
    • Shigeru MatsutaniYukio MizushimaMasami DoteuchiYasunobu Ishihara
    • Shigeru MatsutaniYukio MizushimaMasami DoteuchiYasunobu Ishihara
    • C07D471/04
    • C07D471/04
    • 9-(Substituted thio)-4H-pyrido[1,2-a]pyrimidin-4-one derivatives of the formula: ##STR1## wherein n is 0 or 1, R is --COR.sup.1, --CONR.sup.4 R.sup.5 or --CH.sub.2 R.sup.6, R.sup.1 is C.sub.1 -C.sub.5 alkyl, C.sub.3 -C.sub.7 cycloalkyl, allythio, styryl, phenoxymethyl, thienylmethyl, C.sub.6 -C.sub.10 aryl optionally substituted, benzyl optionally substituted or 5- or 6-membered heterocyclic group optionally substituted, R.sup.2 and R.sup.3 each is hydrogen, C.sub.1 -C.sub.5 alkyl, carboxy, C.sub.2 -C.sub.5 alkoxycarbonyl or benzyloxycarbonyl optionally substituted, R.sup.4 and R.sup.5 each is hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.3 -C.sub.7 cycloalkyl or phenyl optionally substituted, and R.sup.8 is pyridyl or phenyl optionally substituted) being useful as antiulcer agents are provided through several routes.
    • 9-(取代的硫代)-4H-吡啶并[1,2-a]嘧啶-4-酮衍生物其中n为0或1,R为-COR 1,-CONR 4 R 5或-CH 2 R 6 R1是C1-C5烷基,C3-C7环烷基,烯硫基,苯乙烯基,苯氧基甲基,噻吩基甲基,任选取代的C 6 -C 10芳基,任选取代的苄基,或任选被取代的5或6元杂环基,R 2和R 3各自是氢, C 1 -C 5烷基,羧基,C 2 -C 5烷氧基羰基或任选取代的苄氧基羰基,R 4和R 5各自为氢,C 1 -C 5烷基,C 3 -C 7环烷基或任选取代的苯基,R 8为任选取代的吡啶基或苯基)可用作抗溃疡剂 代理商通过几条路线提供。