.DELTA..sup.3 -3-Vinyl or substituted vinyl-4-carboxy cephalosporins
申请人:Glaxo Laboratories Limited
公开号:US04107431A1
公开(公告)日:1978-08-15
The invention is concerned with .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-vinyl or substituted 3-vinyl groups as well as with phosphorous intermediates useful in the preparation thereof.
Process for the preparation of 3-vinyl and substituted vinyl
申请人:Glaxo Laboratories Limited
公开号:US04110534A1
公开(公告)日:1978-08-29
The invention is concerned with the preparation of .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-vinyl group or substituted 3-vinyl group by means of phosphorous intermediates.