Title: β-Lactam antibacterial compounds, their preparation and pharmaceutical compositions containing them

Abstract: The present invention provides the compounds of the formula (II): ##STR1## and pharmaceutically acceptable salts and cleavable esters thereof wherein RCONH is an organic acylamino group and E is a carboxy group or pharmaceutically acceptable salt or ester thereof or is a cyano group. Their preparation is described as is their use in compositions containing them. Compounds wherein RCONH is replaced by an azido group are described as useful intermediates.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Pearson, Michael J. (Horsham, GB2)
Branch, Clive L. (Horsham, GB2)

Application Number: 06/233180
Filing Date: 1981-02-10
Publication_date: 1983-10-04
Assignee: BEECHAM GROUP LTD (GB)

Primary Class(es): 514/210.090 424/114, 987/368, 514/191, 514/339, 546/276.7
Other Classes: C07D205/085; C07D477/24; C07F7/18; C07F9/568; C07D205/00; C07D477/00; C07F7/00; C07F9/00; C07D487/04; A61K31/40
Primary Examiner: Lee, Mary C.
Assistant Examiner:
Attorney: Jacobs & Jacobs

Claims:

What we cla