Thiazolidine derivatives with antibiotic activity
    9.
    发明授权
    Thiazolidine derivatives with antibiotic activity 失效
    具有抗生素活性的噻唑烷衍生物

    公开(公告)号:US4405618A

    公开(公告)日:1983-09-20

    申请号:US279454

    申请日:1981-07-01

    摘要: New derivatives of 1,3-thiazolidin-4-yl carboxylic acid of the general formula I ##STR1## wherein R represents hydrogen, (C.sub.1 -.sub.4)alkyl, aralkyl, phenyl, phenyl substituted by a halogen atom or a methoxy group, formyl, acyl, trimethylsilyl;R' represents hydrogen, a pharmaceutically acceptable inorganic or organic cation, (C.sub.1 -.sub.4)alkyl, 2,2,2-trichloroethyl, acetonyl, benzyl, benzyl substituted by nitro or methoxy, phenyl, nitrophenyl, benzhydryl or trimethylsilyl;R' may also represent a radical capable of providing metabolic activation in vivo selected from acetoxymethyl, pivaloyloxymethyl, phthalidyl, benzoyloxymethyl, 5-indanyl, a group of formula ##STR2## or a group of formula ##STR3## in which R" stands for (C.sub.1 -.sub.4)alkyl, (C.sub.5 -.sub.6)cycloalkyl or aryl; A represents hydrogen, halogen, N.sub.3, OH, NH.sub.2 ; or a quaternary N-atom, particularly ##STR4## (and in this case R' is a negative charge; or a O--CO--NH.sub.2 group; or a group of the formula OR"'; O--COR"', NH--CO--R"' or SR"', where R"' is (C.sub.1 -C.sub.4)alkyl, aryl, substituted aryl or a heterocyclic group which can carry lower alkyls;n may be zero or 1.The compounds possess antibacterial utility against microbial infections in man, animals and plants.

    摘要翻译: 通式I(I)的1,3-噻唑烷-4-基羧酸的新衍生物其中R表示氢,(C 1-4)烷基,芳烷基,苯基,被卤素原子取代的苯基或甲氧基 基,甲酰基,酰基,三甲基甲硅烷基; R'表示氢,药学上可接受的无机或有机阳离子,(C 1-4)烷基,2,2,2-三氯乙基,丙酰基,苄基,被硝基或甲氧基取代的苄基,苯基,硝基苯基,二苯甲基或三甲基甲硅烷基; R'也可以代表能够在体内提供代谢活化的基团,其选自乙酰氧基甲基,新戊酰氧基甲基,邻苯二甲酰基,苯甲酰氧基甲基,5-二氢化茚基,式为“IMAGE”或式“IMAGE”的一组,其中R“ (C 1-4)烷基,(C 5-6)环烷基或芳基; A表示氢,卤素,N 3,OH,NH 2; 或季氮原子,特别是(在这种情况下,R'为负电荷;或O-CO-NH 2基团;或式OR“'的基团; O-COR” NH-CO-R“'或SR”',其中R“是(C 1 -C 4)烷基,芳基,取代的芳基或可带有低级烷基的杂环基; n可以是0或1.化合物 在人类,动物和植物中具有抵抗微生物感染的抗菌效果。

    2-Carbamoyloxymethyl-penicillin derivatives
    10.
    发明授权
    2-Carbamoyloxymethyl-penicillin derivatives 失效
    2-羧甲氧基甲基 - 青霉素衍生物

    公开(公告)号:US4322347A

    公开(公告)日:1982-03-30

    申请号:US893092

    申请日:1978-04-03

    CPC分类号: C07D499/00 Y02P20/55

    摘要: Penicillin sulfoxide esters are reacted with an isocyanate to produce the corresponding (substituted)-2-carbamoyloxymethylpenam, the corresponding (substituted)-3-carbamoyloxycepham or the corresponding 3-methylcephem. The 6- or 7-side-chain of these products may be cleaved to give the corresponding 6-amino (penams) or 7-amino (cephams and cephems) compounds, and the latter may be reacylated to produce different 6-acyl-2-carbamoyloxymethyl penams, 7-acyl-3-carbamoyloxy cephams and 7-acyl-3-methylcephems. The substituent groups may be removed from the (substituted)-2-carbamoyloxypenams or the (substituted)-3-carbamoyloxycephams to give the corresponding free 2-carbamoyloxymethylpenams or 3-carbamoyloxycephams, respectively.

    摘要翻译: 将青霉素亚砜酯与异氰酸酯反应以产生相应的(取代的)-2-氨基甲酰氧基甲基氨基钠,相应的(取代的)-3-氨基甲酰氧基头孢烯或相应的3-甲基头孢烯。 这些产物的6-或7-侧链可能被切割,得到相应的6-氨基(半阴离子)或7-氨基(cephams和cephems)化合物,后者可以被再酰化以产生不同的6-酰基-2 - 氨基甲酰氧基甲基半阴离子,7-酰基-3-氨基甲酰氧基Cephams和7-酰基-3-甲基头孢烯。 取代基可以从(取代的)-2-氨基甲酰氧基草酸或(取代的)-3-氨基甲酰氧基头孢中除去,分别得到相应的游离的2-氨基甲酰氧基甲基氨基或3-氨基甲酰氧基头孢。