Optically active .beta.-amino acid derivatives and their salts, and
processes for producing the same
    2.
    发明授权
    Optically active .beta.-amino acid derivatives and their salts, and processes for producing the same 失效
    光活性β-氨基酸衍生物及其盐,以及其制备方法

    公开(公告)号:US4837343A

    公开(公告)日:1989-06-06

    申请号:US91832

    申请日:1987-09-01

    申请人: Minoru Hatanaka

    发明人: Minoru Hatanaka

    IPC分类号: C07D309/30

    CPC分类号: C07D309/30

    摘要: Optically active .beta.-amino acid derivatives and their salts of the following formula: ##STR1## wherein COOR.sup.1 is an esterified or unesterified carboxyl group; R.sup.2 is hydrogen or a C.sub.1-10 acyl or esterified carboxyl group and processes for producing the same. These compounds permit important intermediate for the synthesis of 1.beta.-methylcarbapenem derivatives to be produced in an efficient way.

    摘要翻译: 光学活性的β-氨基酸衍生物及其下式的盐:其中COOR1是酯化或未酯化的羧基; R2是氢或C1-10酰基或酯化的羧基,并且其制备方法。 这些化合物允许重要的中间体合成1-β-碳代青霉烯衍生物以有效的方式生产。

    Acylation of 7-aminocephalosporanic acids
    3.
    发明授权
    Acylation of 7-aminocephalosporanic acids 失效
    7-氨基头孢烷酸的酰化

    公开(公告)号:US4179557A

    公开(公告)日:1979-12-18

    申请号:US428037

    申请日:1973-12-26

    摘要: 6-Aminoacylamidopenicillanic acid or 7-aminoacylamidocephalosporanic acids are produced in high yields by acylating 6-aminopenicillanic acid or 7-aminocephalosporanic acid with an amino acid, or a functional equivalent thereof, having its amino group protected with N,N-disubstituted .beta.-keto acid amide, and then removing the protecting group from the resulting protected 6-aminoacylamidopenicillanic acid or protected 7-aminoacylamidocephalosporanic acid by hydrolysis.

    摘要翻译: 6-氨基酰氨基青霉烷酸或7-氨基酰氨基氨基头孢菌酸通过用氨基酸或其功能等同物酰化6-氨基青霉烷酸或7-氨基头孢烷酸而具有高产率,其氨基被N,N-二取代的β-酮保护 酰胺,然后通过水解从得到的受保护的6-氨基酰氨基青霉烷酸或被保护的7-氨基酰氨基头孢烷酸中除去保护基。