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    • 6. 发明授权
    • Quinazolinone derivatives and a process for production thereof
    • 喹唑啉酮衍生物及其生产方法
    • US4099002A
    • 1978-07-04
    • US495829
    • 1974-08-08
    • Shigeho InabaMichihiro YamamotoKikuo IshizumiKazuo MoriMasao KoshibaHisao Yamamoto
    • Shigeho InabaMichihiro YamamotoKikuo IshizumiKazuo MoriMasao KoshibaHisao Yamamoto
    • C07D239/82C07D403/06C07D413/06
    • C07D403/06C07D239/82C07D413/06
    • 3,4-Dihydro-2(1H)-quinazolinone derivatives of the formula, ##STR1## wherein R.sub.1 and R.sub.2 signify individually a hydrogen atom, a lower alkyl group, a lower alkoxy group, a nitro group, a trifluoromethyl group, a lower alkylthio group, a lower alkylsulfonyl group or a halogen atom; R.sub.3 signifies a phenyl group, a halophenyl group, a lower alkylphenyl group, a lower alkoxyphenyl group, a trifluoromethylphenyl group, a lower cycloalkyl group, a lower cycloalkenyl group, a pyridyl group, a pyrrolyl group, a furyl group, a thienyl group or a naphthyl group; R.sub.4 signifies a lower alkyl group, a lower alkenyl group, an aralkyl group, a lower cycloalkylalkyl group, a lower cycloalkyl group, a lower alkoxyalkyl group, a lower alkylthioalkyl group, a lower hydroxyalkyl group, a lower alkanoyloxyalkyl group, a phenyl group, a halophenyl group, a trifluoromethylphenyl group, a lower alkylphenyl group a lower alkoxyphenyl group, a pyridyl group or a group of the formula ##STR2## wherein n signifies an integer of 1 to 4; and R.sub.5 and R.sub.6 signify individually a lower alkyl group, provided that they may form together with the adjacent nitorgen atom an optionally substituted 5- or 6-membered heterocyclic ring, which may further contain a hetero atom); and R signifies a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkoxyalkyl group, a lower alkylthioalkyl group, an aralkyl group, a lower cycloalkylalkyl group, a lower trihalomethylalkyl group or a group of the formula ##STR3## (wherein n, R.sub.5 and R.sub.6 signify the same as defined above), which have excellent pharmacological properties such as central nervous system depressant, anti-inflammatory, analgestic and anti-microbial activities, can be produced by reducing a compound of the formula, ##STR4## wherein R, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have the same meanings as defined above; and X.sub.1, X.sub.2 and X.sub.3 signify individually a halogen atom, or by the substitution reaction of the ring nitrogen atom of a 1 or 3-unsubstituted 3,4-dihydro-2(1H)-quinazolinone derivative.
    • 10. 发明授权
    • Fused quinazolinones and a process for production thereof
    • 熔融喹唑啉酮及其制备方法
    • US3980645A
    • 1976-09-14
    • US521768
    • 1974-11-07
    • Shigeho InabaMichihiro YamamotoKikuo IshizumiKazuo MoriMasao KoshibaHisao Yamamoto
    • Shigeho InabaMichihiro YamamotoKikuo IshizumiKazuo MoriMasao KoshibaHisao Yamamoto
    • C07D487/04C07D498/04C07D265/00C07D273/00C07D295/00
    • C07D487/04
    • Fused quinazolinone derivatives of the formula, ##SPC1##Wherein R.sub.1 and R.sub.2 are individually hydrogen, C.sub.1.sub.-4 alkyl, C.sub.1.sub.-4 alkoxy, nitro, C.sub.1.sub.-4 alkylsulfonyl or halogen; R.sub.3 is pyridyl, thienyl or a group of the formula ##SPC2##Wherein R.sub. 4 is hydrogen or halogen; R is hydrogen, C.sub.1.sub.-4 alkyl, C.sub.2.sub.-5 alkenyl, aralkyl, (C.sub.3.sub.-6 cycloalkyl)C.sub.1.sub.-4 alkyl, (C.sub.1.sub.-4 alkoxy)C.sub.1.sub.-4 alkyl, (C.sub.1.sub.-4 alkylthio)C.sub.1.sub.-4 alkyl, hydroxy-C.sub.1.sub.-4 alkyl or C.sub.2.sub.-5 alkanoyloxy-C.sub.1.sub.-4 alkyl; Y is oxygen, or a group of the formula N - R.sub.5, wherein R.sub.5 is hydrogen or C.sub.1.sub.-4 alkyl; and Z is C.sub.2.sub.-5 alkylene or alkenylene, are prepared by reacting a trihaloacetamidophenyl ketone derivative of the formula, ##SPC3##Wherein R.sub.1, R.sub.2, R.sub. 3 and R are as defined above; and X.sub.1, X.sub.2 and X.sub.3 are halogen, with an amine of the formula, HY - Z - NH.sub.2, wherein Y and Z are as defined above, or a salt thereof, in the presence of a solvent or a mixture thereof. They have remarkable pharmacological properties such as anti-inflammatory, analgesic and/or uricosuric activities.
    • 下式的稠合喹唑啉酮衍生物WHEREIN R1和R2分别为氢,C1-4烷基,C1-4烷氧基,硝基,C1-4烷基磺酰基或卤素; R 3是吡啶基,噻吩基或式WHEREIN R 4是氢或卤素的基团; R为氢,C 1-4烷基,C 2-5烯基,芳烷基,(C 3-6环烷基)C 1-4烷基,(C 1-4烷氧基)C 1-4烷基,(C 1-4烷硫基)C 1-4烷基,羟基 C 1-4烷基或C 2-5烷酰氧基-C 1-4烷基; Y为氧,或式为N-R5的基团,其中R5为氢或C1-4烷基; Z是C2-5亚烷基或亚烯基,是通过下式的三卤代乙酰胺基苯基酮衍生物WHEREIN R1,R2,R3和R如上所定义而制备的; 并且X 1,X 2和X 3是卤素,在溶剂或其混合物的存在下,与下式的胺HY-Z-NH 2(其中Y和Z如上定义)或其盐。 它们具有显着的药理学性质,如抗炎,镇痛和/或尿酸活性。