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    • 1. 发明授权
    • Phenyl guanidinobenzoate derivatives which have protease inhibitory
activity
    • 具有蛋白酶抑制活性的苯胍基苯甲酸酯衍生物
    • US4746737A
    • 1988-05-24
    • US886046
    • 1986-07-16
    • Setsuro FujiiEizou HattoriMitsuteru HirataKoichiro WatanabeTomio OhtaNobuo YokooMasahiko Nagakura
    • Setsuro FujiiEizou HattoriMitsuteru HirataKoichiro WatanabeTomio OhtaNobuo YokooMasahiko Nagakura
    • C07C279/18C07D207/16C07D207/26C07D207/27C07D243/08C07D295/185C07D265/30
    • C07D207/27C07C279/18C07D207/16C07D243/08C07D295/185
    • Novel benzoyl esters of the following formula (I), and acid addition salts thereof, ##STR1## in which R.sub.1 and R.sub.2 are the same or different and represent a hydrogen atom or a lower alkoxy group, A represents a single bond, a linear or branched lower alkylene group, a lower alkenylene group, R.sub.3 and R.sub.4 are the same or different and represent a hydrogen atom or a lower alkyl group, or R.sub.3 and R.sub.4 join together to form a lower alkylene group, R.sub.5 represents a group of the formula, --X--(CO).sub.n --Y in which X represents a single bond, a linear or branched lower alkylene group or an alkenylene group, n is 0 or 1, Y represents a hydrogen atom, a cycloalkyl group, an aryl group, a hydroxyl group, a lower alkoxy group and the like are prepared by reacting para-nitrobenzoic acid or its derivative with a compound of the general formula (III) or its derivative ##STR2## to obtain a compound of the general formula (IV) ##STR3## followed by reducing the compound of the formula (IX) ##STR4## and subjecting the compound (IX) to guanidylation reaction, or by reaction para-guanidinobenzoic derivative with compound (III) or its derivative.The benzoyl esters have strong anti-trypsin activity, anti-thrombin activity and anticoagulant activity with low toxicity and are useful as a medicine for treatment of pancreatitis and disseminated intravascular coagulation (DIC).
    • 下式(I)的新型苯甲酰基酯及其酸加成盐,其中R 1和R 2相同或不同,表示氢原子或低级烷氧基,A表示单键, 直链或支链低级亚烷基,低级亚烯基,R3和R4相同或不同,表示氢原子或低级烷基,或R3和R4连接在一起形成低级亚烷基,R5表示 其中X表示单键的-X-(CO)nY,直链或支链低级亚烷基或亚烯基,n为0或1,Y表示氢原子,环烷基,芳基, 通过使对硝基苯甲酸或其衍生物与通式(III)的化合物或其衍生物(IMAGE)(III)反应来制备羟基,低级烷氧基等,以获得通式(III)的化合物 (Ⅳ),然后还原式(Ⅸ)化合物(IX)和 使化合物(IX)进行胍基化反应,或通过反应对 - 胍基苯甲酸衍生物与化合物(III)或其衍生物反应。 苯甲酰酯具有很强的抗胰蛋白酶活性,抗凝血酶活性和抗凝血活性,毒性低,可用作治疗胰腺炎和弥散性血管内凝血(DIC)的药物。
    • 7. 发明授权
    • Methylmethioninesulfonium compounds, process for their preparation, and
pharmaceutical compositions containing them
    • 甲基亚氨基锍化合物,其制备方法和含有它们的药物组合物
    • US4216225A
    • 1980-08-05
    • US906567
    • 1978-05-16
    • Masami ShiratsuchiKiyoshi KawamuraHisashi KuniedaNaoki MachidaToshihiro AkashiMasahiko Nagakura
    • Masami ShiratsuchiKiyoshi KawamuraHisashi KuniedaNaoki MachidaToshihiro AkashiMasahiko Nagakura
    • A61K31/195A61K31/16A61K31/22A61P1/04C07C67/00C07C325/00C07C381/12C07D213/82A61K31/55A61K31/215
    • C07D213/82
    • Methylmethioninesulfonium compounds of the formula ##STR1## wherein X.crclbar. represents an anion;R.sup.1 represents a hydrogen atom or an acyl group of the formula -COR.sup.3 in which R.sup.3 represents an alkyl group with 1 to 20 carbon atoms, the group --CH.sub.2).sub.2 COOH or the group ##STR2## in which Z represents a direct bond or a methylene or vinylene linkage, Y represents C or N, R.sup.4 represents a member selected from the class consisting of a hydrogen atom, lower alkyl groups, lower alkoxy groups, di-lower-alkylamino groups and a sulfamoyl group, n is a number of 1 to 3, and two or more R.sup.4 groups may be identical or different; andR.sup.2 represents the group --COOR.sup.5 in which R.sup.5 represents a hydrogen atom, an alkyl group with 1 to 5 carbon atoms or a metal- or metal complex-forming moiety, or the group ##STR3## in which R.sup.6 groups may be identical or different, and each represent a hydrogen atom or an alkyl group with 1 to 5 carbon atoms, with the proviso that when R.sup.1 represents a hydrogen atom, R.sup.2 is not --COOH; when R.sup.1 represents a hydrogen atom and R.sup.2 represents --CONH.sub.2, X.crclbar. is not Cl.crclbar.; and when R.sup.1 is --COCH.sub.3 and R.sup.2 is --COOCH.sub.3, X.crclbar. is not I.crclbar..The compounds can be easily prepared from methionine as a starting material by a combination of known unit reactions such as methylsulfonium-forming reaction, acylation, amidation, esterification and metal salt-forming reaction. These compounds are especially useful for treating ulcers.
    • 其中X( - )表示阴离子的式“IMAGE”的甲基甲硫氨onium化合物; R 1表示氢原子或式-COR 3的酰基,其中R 3表示具有1至20个碳原子的烷基,基团-CH 2)2 COOH或其中Z表示直接键或基团 亚甲基或亚乙烯基,Y表示C或N,R4表示选自氢原子,低级烷基,低级烷氧基,二低级烷基氨基和氨磺酰基的成员,n为1 至3个,并且两个或更多个R 4基团可以相同或不同; 并且R 2表示其中R 5表示氢原子,具有1至5个碳原子的烷基或金属或金属络合物形成部分的基团-COOR 5或其中R6基团可以相同或不同的基团 并且各自表示氢原子或具有1至5个碳原子的烷基,条件是当R 1表示氢原子时,R 2不是-COOH; 当R 1表示氢原子且R 2表示-CONH 2时,X( - )不是Cl( - ); 当R1是-COCH3且R2是-COOCH3时,X( - )不是I( - )。 通过已知的单元反应如甲基锍形成反应,酰化,酰胺化,酯化和金属盐形成反应的组合,可以容易地从甲硫氨酸作为原料制备化合物。 这些化合物特别适用于治疗溃疡。