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    • 16. 发明授权
    • Use of benzimidazole derivatives as yield promoters
    • 苯并咪唑衍生物作为产率促进剂的应用
    • US4960783A
    • 1990-10-02
    • US292581
    • 1988-12-30
    • Gerhard BonseWerner HallenbachHans LindelFriedrich Berschauer
    • Gerhard BonseWerner HallenbachHans LindelFriedrich Berschauer
    • A23K1/16C07D235/06C07D235/08C07D235/10C07D235/26
    • C07D235/06C07D235/08C07D235/10C07D235/26
    • Method of promoting the yield and growth of animals which comprises administering to such animals a yield and growth promoting effective amount of a benzimidazole derivative of the formula ##STR1## in which R.sup.1 stands for hydrogen, hydroxyl, alkyl or halogenoalkyl,R.sup.2 stands for hydrogen, alkyl, halogen, CN or halogenalkyl,R.sup.3 stands for hydrogen, alkyl or acyl,R.sup.4 stands for hydrogen, alkyl or halogenoalkyl,R.sup.5 stands for alkyl or halogenoalkyl,R.sup.6 stands for alkyl or cycloalkyl, which is optionally substituted by halogen, cycloalkyl, OH, alkoxy, halogenoalkoxy or aryl, which can in turn be substituted by alkyl, halogen, CN or the radicals --COR.sup.7, --O--alkylene--COR.sup.7, --alkylene--R.sup.8 or --O-- alkylene--R.sup.8,R.sup.7 stands for hydroxyl, alkoxy or --NR.sup.9 R.sup.10,R.sup.8 stands for hydroxyl, alkoxy or --NR.sup.9 R.sup.10,R.sup.9 stands for hydrogen or alkyl andR.sup.10 stands for hydrogen or alkyl,or physiologically tolerated salts thereof. The active materials are new except for those in whichR.sup.1 stands for hydrogen,R.sup.4 stands for hydrogen,R.sup.5 stands for methyl andR.sup.6 stands for methyl.
    • 促进动物产量和生长的方法,其包括向所述动物施用产量和生长促进有效量的式(I)的苯并咪唑衍生物,其中R1代表氢,羟基,烷基或卤代烷基,R2代表 对于氢,烷基,卤素,CN或卤代烷基,R3代表氢,烷基或酰基,R4代表氢,烷基或卤代烷基,R5代表烷基或卤代烷基,R6代表烷基或环烷基, 环烷基,OH,烷氧基,卤代烷氧基或芳基,其又可以被烷基,卤素,CN或基团-COR7,-O-亚烷基-COR7, - 亚烷基-R8或-O-亚烷基-R8取代,R7代表 羟基,烷氧基或-NR9R10,R8代表羟基,烷氧基或-NR9R10,R9代表氢或烷基,R10代表氢或烷基或其生理上耐受的盐。 活性物质是新的,除了其中R1代表氢,R4代表氢,R5代表甲基,R6代表甲基的那些。
    • 20. 发明授权
    • Preparation of 4-amino-6-tert.-butyl-3-alkylthio-1,2,4-triazin-5(4H)-one
    • 4-氨基-6-叔丁基-3-烷硫基-1,2,4-三嗪-5(4H) - 酮的制备
    • US4315094A
    • 1982-02-09
    • US235495
    • 1981-02-19
    • Gerhard BonseHeinz U. BlankHans Kratzer
    • Gerhard BonseHeinz U. BlankHans Kratzer
    • C07D253/06C07C51/06C07D253/075
    • C07D253/075C07C51/06
    • In the preparation of 4-amino-6-tert.-butyl-3-alkylthio-1,2,4-triazin-5-(4H)-one of the formula ##STR1## wherein (1) pivaloyl cyanide of the formula(CH.sub.3).sub.3 C--CO--CNis reacted to form a derivative of pyruvic acid, (2) the pyruvic acid derivative is condensed with thiocarbohydrazide of the formulaNH.sub.2 --NH--CS--NH--NH.sub.2to form 4-amino-6-tert.-butyl-3-mercapto-1,2,4-triazin-5(4H)-one of the formula ##STR2## and (3) this is alkylated, the improvement which comprises effecting step (1) by reaction with a carboxylic acid anhydride of the formulaR--CO--O--CO--Rin which R is an optionally substituted aliphatic radical with up to 8 carbon atoms or an optionally substituted phenyl radical, in the presence of a strong acid at a temperature between about -50.degree. and +150.degree. C., and then adding water to the reaction mixture, thereby to form trimethylpyruvic acid N-acylamide of the formula(CH.sub.3).sub.3 C--CO--CO--NH--CO--R.
    • 在制备式(IMAGE)的4-氨基-6-叔丁基-3-烷硫基-1,2,4-三嗪-5-(4H) - 酮中,其中(1)式(1)的新戊酰氰 CH3)3C-CO-CN反应形成丙酮酸的衍生物,(2)丙酮酸衍生物与式NH2-NH-CS-NH-NH2的硫代酰肼缩合形成4-氨基-6-叔丁基。 丁基-3-巯基-1,2,4-三嗪-5(4H) - 酮,和(3)将其烷基化,其改进包括通过与羧酸反应进行步骤(1) 式R-CO-O-CO-R的酸酐,其中R是具有至多8个碳原子的任选取代的脂族基团或任选取代的苯基基团,在强酸存在下,在约-50℃ 和+ 150℃,然后向反应混合物中加入水,从而形成式(CH 3)3 C-CO-CO-NH-CO-R的三甲基丙酮酸N-酰基酰胺。