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    • 35. 发明授权
    • 5-Alkoxy-picolinic acid calcium salts and anti-hypertensive composition
containing 5-alkoxy-picolinic acid calcium salts and anti-hypertensive
composition thereof
    • 含有5-烷氧基 - 吡啶甲酸钙盐及其抗高血压组合物的5-烷氧基 - 吡啶甲酸钙盐和抗高血压组合物
    • US4189489A
    • 1980-02-19
    • US838180
    • 1977-09-30
    • Takemi KoedaTakashi TsuruokaUichi ShibataHiroyasu AsaokaMitsugu HachisuOsamu ItohYasuharu SekizawaShigeharu InouyeTaro Niida
    • Takemi KoedaTakashi TsuruokaUichi ShibataHiroyasu AsaokaMitsugu HachisuOsamu ItohYasuharu SekizawaShigeharu InouyeTaro Niida
    • A61K31/44A61P9/12C07D213/65C07D213/79A61K31/445C07D213/89
    • C07D213/79C07D213/65
    • 5-Alkoxy-picolinic acids and the salts and the esters thereof represented by the formula (I): ##STR1## wherein R represents an alkyl group having 1 to 6 carbon atoms and M represents a hydrogen atom; a calcium atom; a sodium atom; a potassium atom; an aluminum atom; an unsubstituted phenyl group; a phenyl group substituted with one or more of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms or a halogen atom (such as a chlorine, bromine, iodine, etc., atom); a phthalidyl group; an alkoxyalkyl group wherein the alkyl moiety and the alkoxy moiety each has 1 to 4 carbon atoms; or an acyloxyalkyl group having the formula ##STR2## wherein R.sub.2 represents a hydrogen atom or a methyl group and R.sub.3 represents an alkyl group having 1 to 5 carbon atoms (such as a methyl, n-propyl, isobutyl, t-butyl, etc., group), an alkoxy group having 1 to 4 carbon atoms, a phenyl group, a phenyl group substituted with one or more of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms or a halogen atom (such as a chlorine, bromine, iodine, etc., atom) or an aralkyl group wherein the alkyl moiety has 1 to 3 carbon atoms, which are useful as anti-hypertensive agents, a process for preparing 5-alkoxy-picolinic acids and the salts and the esters thereof, and anti-hypertensive compositions containing the 5-alkoxy-picolinic acids and the salts and the esters thereof.
    • 5-烷氧基 - 吡啶甲酸及其由式(I)表示的盐及其酯:其中R表示具有1至6个碳原子的烷基,M表示氢原子; 钙原子; 一个钠原子; 钾原子; 铝原子; 未取代的苯基; 被一个或多个具有1至4个碳原子的烷基,具有1至4个碳原子的烷氧基或卤素原子(例如氯,溴,碘等)原子取代的苯基; 苯酞基; 其中烷基部分和烷氧基部分各自具有1至4个碳原子的烷氧基烷基; 或具有式“IMAGE”的酰氧基烷基,其中R 2表示氢原子或甲基,R 3表示具有1至5个碳原子的烷基(例如甲基,正丙基,异丁基,叔丁基等) ,基团),具有1至4个碳原子的烷氧基,苯基,被一个或多个具有1至4个碳原子的烷基取代的苯基,具有1至4个碳原子的烷氧基或卤素原子 (例如氯,溴,碘等原子)或其中烷基部分具有1至3个碳原子的芳烷基,其可用作抗高血压剂,制备5-烷氧基 - 吡啶甲酸的方法和 其盐和酯,以及含有5-烷氧基 - 吡啶甲酸及其盐及其酯的抗高血压组合物。
    • 37. 发明授权
    • 9-O-Alkanoyl-3
    • 9-O-烷酰基-3 {41-烷酰氧基甲基-SF-837物质及其制备
    • US3959256A
    • 1976-05-25
    • US505310
    • 1974-09-12
    • Shigeharu InouyeShoji OmotoKatsuyoshi IwamatsuTaro NiidaToyoaki KawasakiTakashi Tsuruoka
    • Shigeharu InouyeShoji OmotoKatsuyoshi IwamatsuTaro NiidaToyoaki KawasakiTakashi Tsuruoka
    • C07H17/08
    • C07H17/08
    • A 9-O-alkanoyl-3"-O-alkanoyloxymethyl-SF-837 substance is now synthetized, which is a new compound useful in that this new 9-O-alkanoyl-3"-O-alkanoyloxymethyl derivative of the SF-837 substance exhibits an antibacterial activity comparable to that of the parent SF-837 substance but is advantageously free from the unpleasant bitter taste inherent to the SF-837 substance and is hence adapted for oral administration. A process of producing the 9-O-alkanoyl-3"-O-alkanoyloxymethyl-SF-837 substance is also provided, which comprises hydrolysing partially and selectively a 9,2'-di-O-alkanoyl-3"-O-alkanoyloxymethyl-SF-837 substance in an aqueous alkanol or aqueous acetone. The 9,2'-di-O-alkanoyl-3"-O-alkanopyloxymethyl-SF-837 substance may be prepared by reacting a 9,2'-di-alkanoyl- or O-mono-O-alkanoyl-3"-O-thiomethoxymethyl-SF-837 substance with an alkanoic anhydride which is exemplified by acetic anhydride or propionic anhydride in the specification.
    • 现在合成了9-O-烷酰基-3“-O-烷酰氧基甲基-SF-837物质,这是一种新的化合物,有用的是这种新型的9-O-烷酰基-3'-O-烷酰氧基甲基衍生物 -837物质表现出与母体SF-837物质相当的抗菌活性,但有利地没有SF-837物质固有的不愉快的苦味,因此适于口服给药。 还提供了制备9-O-烷酰基-3“-O-烷酰氧基甲基-SF-837物质的方法,其包括部分和选择性地水解9,2'-二-O-烷酰基-3'-O - 烷酰氧基甲基-SF-837物质在链烷醇水溶液或丙酮水溶液中。 9,2'-二-O-烷酰基-3“-O-烷酰氧基甲基-SF-837物质可以通过使9,2'-二烷酰基或O-单-O-烷酰基-3' 具有链烷酸酐的“-O-硫代甲氧基甲基-SF-837”物质,其例示在说明书中的乙酸酐或丙酸酐。