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    • 4. 发明授权
    • Process for the preparation of
2-alkoxy-N-(1-azabicyclo[2.2.2])octan-3-yl)aminobenzamides
    • 制备2-烷氧基-N-(1-氮杂双环[2.2.2])辛-3-基)氨基苯甲酰胺的方法
    • US4870181A
    • 1989-09-26
    • US697943
    • 1985-02-04
    • Young S. Lo
    • Young S. Lo
    • C07D453/02
    • C07D453/02
    • A process for the preparation of 2-alkoxy-N-(1-azabicyclo[2.2.2]octan-3-yl)aminobenzamides, which are gastric pharmaceuticals in monogastric animals having the formula: ##STR1## wherein R is hydrogen or loweralkyl, R.sup.1 is loweralkyl,R.sup.2 is hydrogen, halo or loweralkoxy,Am is amino, methylamino or dimethylaminois disclosed wherein in the initial step an appropriate monoprotonated 3-aminoquinuclidine strong acid salt and an appropriate amino benzoic acid all in a 50-90 vol. % pyridine in water solution are reacted in the presence of N,N'-dialkylcarbodiimide. The free base may be obtained by conventional procedures from the mixtures with minimal purification effort.
    • 在单胃动物中制备2-烷氧基-N-(1-氮杂双环[2.2.2]辛-3-基)氨基苯甲酰胺的方法,其为具有下式的单胃动物:其中R为氢或低级烷基, R 1是低级烷基,R 2是氢,卤素或低级烷氧基,Am是氨基,甲基氨基或二甲基氨基,其中在初始步骤中,合适的单质子化的3-氨基奎宁环酸强酸盐和适当的氨基苯甲酸都在50-90vol。 %吡啶水溶液在N,N'-二烷基碳二亚胺的存在下反应。 游离碱可以通过常规方法从混合物中以最少的纯化力获得。
    • 5. 发明授权
    • 7-Oxygen analogs of cephalosporins
    • 头孢菌素的7-氧类似物
    • US4456755A
    • 1984-06-26
    • US494507
    • 1974-08-05
    • John C. SheehanYoung S. Lo
    • John C. SheehanYoung S. Lo
    • C07D501/00A61K31/545
    • C07D501/00Y02P20/55
    • In accordance with this invention, it has been found that the oxygen analog of 7-aminocephalosporanic acid and biologically active derivatives thereof can be formed from esters of 7-aminocephalosporanic acid. Esters of 7-oxocephalosporanic acid can be formed by diazotization of an ester of 7-aminocephalosporanic acid and contact of the diazo compound so formed with a hypohalous acid and a base in a water miscible organic solvent. Oxygen analogs of 7-aminocephalosporins isolated as esters are then formed by reducing the aforesaid ester to the corresponding 7.beta.-hydroxy-cephalosporanate and then forming the desired analog by introduction of a side chain via hydroxyl group modification. Oxygen analogs of 7-aminocephalosporins are then formed by regeneration of the acid via protective group removal.
    • 根据本发明,已经发现7-氨基头孢烷酸的氧类似物及其生物活性衍生物可以由7-氨基头孢烷酸的酯形成。 7-氧代头孢烷酸的酯可以通过7-氨基头孢烷酸的酯的重氮化和与水混溶的有机溶剂中与次卤酸和碱形成的重氮化合物的接触形成。 然后通过将上述酯还原成相应的7β-羟基 - 头孢菌素,然后通过羟基改性引入侧链形成所需的类似物,形成作为酯分离的7-氨基头孢菌素的氧类似物。 然后通过去除保护基团再生酸形成7-氨基头孢菌素的氧类似物。
    • 6. 发明授权
    • Carbon and oxygen analogs of penicillin
    • 青霉素的碳和氧类似物
    • US4282149A
    • 1981-08-04
    • US946438
    • 1978-09-27
    • John C. SheehanYoung S. Lo
    • John C. SheehanYoung S. Lo
    • C07C45/00C07D499/00C07F9/535C07F9/54
    • C07F9/5352C07C45/00C07D499/00C07F9/5407
    • In accordance with this invention, it has been found that carbon and oxygen analogs of 6.beta.-aminopenicillanic acid and biologically active derivatives thereof can be formed from esters of 6-oxopenicillanic acid. For example, 6.beta.-phenoxyacetoxy-penicillanic acid--an oxygen analog of penicillin V and 6.beta.-phenoxyacetylmethylpenicillanic acid--a carbon analog of penicillin V, may be formed from an ester of 6-oxopenicillanate. The ester of 6-oxopenicillanic acid is formed by a diiospropyl carbodiimide/dimethyl sulfoxide oxidation of the corresponding ester of 6.alpha.-hydroxypenicillanic acid. The oxygen analogs are formed by reducing the ester of 6-oxopenicillanic acid to the corresponding 6.beta.-hydroxypenicillanate and then forming the desired analog by acylation. The carbon analogs are formed by a Wittig reaction of the ester of 6-oxopenicillanic acid with a suitable acylmethylenetriphenylphosphorane followed by saturation of the newly formed double bond and removal of the protective ester group.
    • 根据本发明,已经发现6β-氨基青霉烷酸的碳和氧类似物及其生物活性衍生物可以由6-氧代青霉烷酸的酯形成。 例如,可以由6-氧代青霉烷酸酯形成6β-苯氧基乙酰氧基 - 青霉烷酸 - 青霉素V的氧类似物和6β-苯氧基乙酰基甲基青霉烷酸 - 青霉素V的碳类似物。 6-氧代青霉烷酸的酯由6α-羟基青霉烷酸的相应酯的二亚丙基碳二亚胺/二甲基亚砜氧化形成。 通过将6-氧代青霉烷酸的酯还原成相应的6β-羟基青霉烷酸形成氧类似物,然后通过酰化形成所需的类似物。 碳类似物通过6-氧代青霉烷酸的酯与合适的酰基亚甲基三苯基正膦的维蒂希反应形成,接着饱和新形成的双键并除去保护酯基。