1,3-thiazines and their preparation
    2.
    发明授权
    1,3-thiazines and their preparation 失效
    1,3-THIAZINES及其制备

    公开(公告)号:US3707540A

    公开(公告)日:1972-12-26

    申请号:US3707540D

    申请日:1966-12-07

    Applicant: ROUSSEL UCLAF

    CPC classification number: C07D513/04 C07D307/60 G03C5/39

    Abstract: LACTONES OF 2-(CARBONYL-AMINO-METHYL)-5-HYDROXYMETHYL-3,6-DIHYDRO-2H-1,3-THIAZINE-4 -CARBOXYLIC ACIDS USEFUL AS INTERMEDIATES FOR ANTIBIOTICS OF THE C-CEPHALOSPORINE FAMILY AND THEIR PREPARATION. THE INVENTION RELATES TO NOVEL DIHYDRO-1,3-THIAZINE COMPOUNDS OF THE FORMULA

    2-(R-OOC-CH(-Y)-),7-(O=)-1,2,5,7-TETRAHYDRO-4H-FURO(3,4-D)

    (3,1)THIAZINE

    WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARALKYL, Y IS SELECTED FROM THE GROUP CONSISTING OF -HN-AC, PHTHALIMIDO AND-NH-R'',R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL AND ARALKYL AND AC IS THE ACYL RADICAL OF AN ORGANIC CARBOXYLIC ACID OF 1 TO 18 CARBON ATOMS AND TO A NOVEL PROCESS FOR THE PREPARATION OF THE SAID COMPOUNDS.

    Racemic and optically active 6h 7h-cis-7-amino-desacetylcephalosporanic acid derivatives and process
    4.
    发明授权
    Racemic and optically active 6h 7h-cis-7-amino-desacetylcephalosporanic acid derivatives and process 失效
    种间和光活性的6H 7H-CIS-7-氨基 - 脱乙酰壳多糖类衍生物和方法

    公开(公告)号:US3642788A

    公开(公告)日:1972-02-15

    申请号:US3642788D

    申请日:1967-03-13

    Applicant: ROUSSEL UCLAF

    CPC classification number: C07D513/04

    Abstract: THIS INVENTION RELATES TO A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) A RACEMIC 6H,7H-CIS-7-AMINODESACETYLCEPHALOSPORANIC ACID DERIVATIVE OF THE FORMULA

    2,3-(-COO-CH2-),7-(R-NH-)-2-CEPHEM

    WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND TRIPHENYLMETHYL, (2) IS OPTICALLY ACTIVE ANTIPODES AND (3) WHEN R IS HYDROGEN THEIR ACID ADDITION SALTS. THE INVENTION ALSO RELATES TO THE PROCESS OF PREPARING THESE COMPOUNDS. THESE COMPOUNDS ARE INTERMEDIATES USEFUL IN THE PREPARATION OF CEPHALOSPORIN ANTIBIOTICS AND THE 7-THIENYLACETYLAMINO DERIVATIVE POSSESSES AN ANTIBIOTIC ACTIVITY.

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