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    • 3. 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。
    • 4. 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.
    • 6. 发明授权
    • Imidazo- and pyrimido[2,1-b]quinazolines and preparation thereof
    • 咪唑并嘧啶并[2,3-b]喹唑啉及其制备方法
    • US4179560A
    • 1979-12-18
    • US553676
    • 1975-02-27
    • Michihiro YamamotoShigeaki MorookaMasao KoshibaShigeho InabaHisao Yamamoto
    • Michihiro YamamotoShigeaki MorookaMasao KoshibaShigeho InabaHisao Yamamoto
    • A61K31/505A61P7/10A61P9/12A61P25/24A61P25/26C07D487/04C07D491/147A61K31/395
    • C07D487/04
    • Imidazo- and pyrimido[2,1-b]quinazolines of the formula, ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, halogen, trifluoromethyl, nitro, C.sub.1-4 alkyl or C.sub.1-4 alkoxy, or R.sub.1 and R.sub.2 may together represent methylenedioxy; R.sub.3 is hydrogen, C.sub.1-4 alkyl, phenyl or substituted phenyl of the formula, ##STR2## (wherein R is halogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy); R.sub.4 is hydrogen, C.sub.1-4 alkyl or aralkyl; and A is C.sub.2-3 alkylene wich may be optionally substituted by one or two C.sub.1-2 alkyl radicals, and pharmaceutically acceptable acid addition salts thereof, are prepared by reacting a compound of the formula, ##STR3## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and A are as defined above; and X is oxygen or sulfur, with a halogenating agent at a temperature of about 30.degree. C. to about 180.degree. C. In the above imidaxo- and pyrimido[2,1-b]quinazolines, those having C.sub.1-4 alkyl, or ##STR4## as R.sub.3 are novel compounds and show antidepressant and/or antihypertensive activities.
    • 其中R 1和R 2独立地为氢,卤素,三氟甲基,硝基,C 1-4烷基或C 1-4烷氧基,或者R 1和R 2可以一起代表下式的咪唑并 - 嘧啶并[2,3-b]喹唑啉, 亚甲二氧基; R 3是氢,C 1-4烷基,苯基或下式的取代的苯基,其中R是卤素,C 1-4烷基或C 1-4烷氧基; R4是氢,C1-4烷基或芳烷基; 并且A是可以任选被一个或两个C 1-2烷基取代的C 2-3亚烷基及其药学上可接受的酸加成盐,其通过使下式化合物,其中R1,R2,R3, R4和A如上所定义; 在上述酰胺基 - 和嘧啶并[2,1-b]喹唑啉中,具有C 1-4烷基的那些,或其中X是氧或硫,与卤化剂在约30℃至约180℃的温度下反应。 作为R3是新化合物并显示抗抑郁药和/或抗高血压活性的图像。
    • 7. 发明授权
    • Triazoloquinazolines
    • 三唑并喹唑啉
    • US4002755A
    • 1977-01-11
    • US552889
    • 1975-02-25
    • Michihiro YamamotoShigeaki MorookaMasao KoshibaShigeho InabaHisao Yamamoto
    • Michihiro YamamotoShigeaki MorookaMasao KoshibaShigeho InabaHisao Yamamoto
    • C07D239/84C07D249/08C07D487/04C07D491/147
    • C07D487/04C07D239/84
    • Triazoloquinazolines of the formula, ##STR1## wherein R.sub.1 is C.sub.1.sub.-4 alkyl or aryl; R.sub.2 and R.sub.3 are independently hydrogen, halogen, trifluoromethyl, nitro, C.sub.1.sub.-4 alkyl or C.sub.1.sub.-4 alkoxy, or R.sub.2 and R.sub.3 together may form methylenedioxy; and R.sub.4 is hydrogen, C.sub.1.sub.-4 alkyl, aralkyl, C.sub.1.sub.-4 haloalkyl, or C.sub.3.sub.-6 cycloalkyl; and pharmaceutically acceptable acid addition salts thereof are prepared by (a) reacting a 2-hydrazinoquinazoline derivative with a carboxylic acid or reactive derivative thereof, (b) cyclizing a 2-acylhydrazinoquinazoline derivative with heating or (c) reacting a triazolylbenzophenone derivative with ammonia. Said triazoloquinazolines and pharmaceutically acceptable acid addition salts thereof show excellent anti-inflammatory and analgesic activities.
    • 式中的三唑并喹唑啉,其中R 1为C 1-4烷基或芳基; R2和R3独立地是氢,卤素,三氟甲基,硝基,C1-4烷基或C1-4烷氧基,或者R2和R3一起可以形成亚甲二氧基; 和R 4是氢,C 1-4烷基,芳烷基,C 1-4卤代烷基或C 3-6环烷基; (a)使2-肼基喹唑啉衍生物与羧酸或其反应性衍生物反应,(b)使2-酰基肼基喹唑啉衍生物加热环化,或(c)使三唑基二苯甲酮衍生物与氨反应,制备其药学上可接受的酸加成盐。 所述三唑并喹唑啉及其药学上可接受的酸加成盐显示出优异的抗炎和止痛活性。
    • 9. 发明授权
    • Nitroquinazolinone compounds having antiviral properties
    • 具有抗病性的硝基喹唑啉酮化合物
    • US4146717A
    • 1979-03-27
    • US454284
    • 1974-03-25
    • Michihiro YamamotoShigeaki MorookaMasao KoshibaToshiaki KomatsuHiroshi NoguchiShigeho InabaHisao Yamamoto
    • Michihiro YamamotoShigeaki MorookaMasao KoshibaToshiaki KomatsuHiroshi NoguchiShigeho InabaHisao Yamamoto
    • C07D239/82
    • C07D239/82
    • Viral infections caused by viruses which belong to, e.g. Pox, Herpes, Adeno, Myxo, Paramyxo groups are controlled by administering an effective amount of quinazoline derivatives of the formula ##STR1## wherein R.sub.1 is cyclo, C.sub.3 -C.sub.8 alkyl, cyclo C.sub.3 -C.sub.8 alkyl C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy C.sub.1 -C.sub.4 alkyl, C.sub.2-C.sub.5 alkenyloxy C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylthio C.sub.1 -C.sub.4 alkyl, polyhalo C.sub.1- C.sub.4 alkyl, a group of the formula ##STR2## (wherein m is an integer of 1 to 3; and R.sub.4 and R.sub.5 are individually C.sub.1 -C.sub.4 alkyl, and may form together with the adjacent nitrogen atom an unsubstituted or C.sub.1 -C.sub.4 alkyl substituted 3 to 6 membered saturated heterocyclic ring, which may contain another nitrogen or oxygen atom) or a group of the formula --C.sub.n H.sub.2n --R.sub.6 (wherein n is 0 or an integer of 1 to 3; and R.sub.6 is a phenyl group, a substituted phenyl group or an aromatic or non-aromatic 3 to 6 membered heterocyclic ring which contains one or two hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur atom, and may be optionally substituted by one or two C.sub.1 -C.sub.4 alkyl, and further, those substituents on adjacent carbon atoms may be joined to form a benzene or cyclohexane ring); R.sub.2 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkylsulfonyl, trifluoromethyl or nitro; and R.sub.3 is phenyl, substituted phenyl, cyclo C.sub.3 -C.sub.6 alkyl, pyridyl, furyl, nitrofuryl, thienyl, nitrothienyl, methylthienyl or pyrimidinyl.