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    • 2. 发明授权
    • Hydrazinopyridazine compound, process for production thereof, and use
thereof as medicament
    • 肼基哒嗪化合物,其制备方法及其作为药物的用途
    • US4599333A
    • 1986-07-08
    • US591904
    • 1984-03-22
    • Kikuo YasudaTakayuki TakezakiRikio OhuchiHiroshi OhuyabuYoshitaka TanimotoToshimi SekiTakashi YamaguchiAkihiro IzumiNorio HimoriTsutomu Ishimori
    • Kikuo YasudaTakayuki TakezakiRikio OhuchiHiroshi OhuyabuYoshitaka TanimotoToshimi SekiTakashi YamaguchiAkihiro IzumiNorio HimoriTsutomu Ishimori
    • C07D237/20C07D237/22A61K31/50
    • C07D237/20C07D237/22
    • A hydrazinopyridazine compound represented by the formula ##STR1## wherein R.sup.1 represents a hydrogen atom, a halogen atom, a hydroxyl group, a cyano group, a lower alkyl group which may optionally be substituted by a halogen atom or a hydroxyl, lower alkoxy, lower alkylthio, lower alkanoylamino, allyloxy or tetrahydrofurfuryloxy group, a lower alkoxy group which may optionally be substituted by a 2-furyl, phenyl or lower alkoxy group, a lower alkenyl group, a lower alkenyloxy group, or a lower alkynyl group; R.sup.2 represents a hydrogen atom, a halogen atom, a cyano group, a lower alkyl group which may optionally be substituted by a halogen atom or a lower alkoxy group, a lower alkoxy group, a lower alkenyl group, or a lower alkenyloxy group; R.sup.3, R.sup.4 and R.sup.5, independently from each other, represent a hydrogen atom, a halogen atom, a lower alkyl group which may optionally be substituted by a lower alkoxy group, or a lower alkoxy group; R.sup.6 and R.sup.7, independently from each other, represent a hydrogen atom or a methyl group; Y represents --NH.sub.2, --NH--COOC.sub.2 H.sub.5, or ##STR2## Z represents --O--, --S--, or ##STR3## in which R.sup.8 represents a hydrogen atom or a lower alkyl group; and n is 1 or 2, or its salt; a process for the production the aforesaid compounds; and use of such compounds as antihypertensive agents.
    • 由式(I)表示的肼基哒嗪化合物,其中R 1表示氢原子,卤素原子,羟基,氰基,可任选被卤素原子或羟基取代的低级烷基,低级 烷氧基,低级烷硫基,低级烷酰基氨基,烯丙氧基或四氢呋喃氧基,可任选被2-呋喃基,苯基或低级烷氧基,低级烯基,低级烯氧基或低级炔基取代的低级烷氧基; R 2表示氢原子,卤素原子,氰基,可以被卤素原子或低级烷氧基取代的低级烷基,低级烷氧基,低级链烯基或低级链烯氧基。 R 3,R 4和R 5彼此独立地表示氢原子,卤素原子,可以被低级烷氧基取代的低级烷基或低级烷氧基; R6和R7彼此独立地表示氢原子或甲基; Y表示-NH 2,-NH-COOC 2 H 5或Z表示-O - , - S-或其中R 8表示氢原子或低级烷基的 和n为1或2,或其盐; 一种生产上述化合物的方法; 并使用这些化合物作为抗高血压药。
    • 4. 发明授权
    • Urethane modified epoxy resin compositions
    • 聚氨酯改性环氧树脂组合物
    • US5449737A
    • 1995-09-12
    • US196348
    • 1994-02-14
    • Hiroshi UchidaAkihiro Izumi
    • Hiroshi UchidaAkihiro Izumi
    • C08G18/00C08G59/02C08G59/28C08G18/28C08G59/00C08G59/68
    • C08G59/02C08G18/003C08G59/28
    • A reaction product formed between an epoxy resin, a phenol compound such as bisphenol or the like and an isocyanate compound contains oxazolidone rings and it is a polymeric epoxy resin. Herein is provided an epoxy resin composition comprising said reaction product and a curing agent.The said reaction product contains oxazolidone rings and epoxy groups, and is excellent in heat resistance and adhesive property. Further said reaction product is made into a polymer by the use of the bisphenol compound and at the same time it contains oxazolidone rings; it is excellent in toughness and water resistance. When a tetrabromobisphenol is used as the bisphenol compound, flame retardance is also good.Accordingly, the epoxy resin composition of the present invention is excellent in heat resistance, toughness, adhesive property and water resistance. When a brominated compound is used as the phenol compound, the epoxy resin composition of the invention exhibits an excellent flame retardance.
    • 在环氧树脂,双酚等酚化合物和异氰酸酯化合物之间形成的反应产物含有恶唑烷酮环,是聚合环氧树脂。 本发明提供了包含所述反应产物和固化剂的环氧树脂组合物。 所述反应产物含有恶唑烷酮环和环氧基,耐热性和粘合性优异。 此外,通过使用双酚化合物将反应产物制成聚合物,同时含有恶唑烷酮环; 韧性和耐水性优异。 当使用四溴双酚作为双酚化合物时,阻燃性也良好。 因此,本发明的环氧树脂组合物的耐热性,韧性,粘合性和耐水性优异。 当使用溴化合物作为酚化合物时,本发明的环氧树脂组合物显示出优异的阻燃性。