Penem compounds, processes for their preparation, their use in pharmaceutical compositions and azetidinones used in their preparation
申请人:GLAXO GROUP LIMITED
公开号:EP0000636A1
公开(公告)日:1979-02-07
Compounds of the formula
(wherein R1 represents an alkyl group containing from 1 to 8 carbon atoms, optionally substituted by a hydroxy, etherified hydroxy or acylated hydroxy group; R2a represents a hydrogen atom or a carboxyl esterifying group; n represents 0 or 1 and salts thereof and processes for their preparation. The compounds of formula (I) are useful as antibiotics or as intermediates for the preparation or purification of antibiotics.
Intermediates of the formula
wherein Z represents a halogen atom or a group (S)nR, or-N RxRyRz. A⊖ are also described.
Beta-Lactam compounds, processes for their preparation,compositions containing them and intermediates of use in their preparation
申请人:GLAXO GROUP LIMITED
公开号:EP0003415A2
公开(公告)日:1979-08-08
β-Lactam compounds, process for their preparation, compositions containing them and intermediates of use in their preparation are described. The β-lactam compounds have the formula
(wherein R2a represents a carboxyl esterifying group or a hydrogen atom, R3 represents a group -CnH2n- where n is an integer from 1 to 6, R' represents an azido group -N3 or an amino group -NH2 and B represents S or S→O) together with salts and zwitterionic forms thereof.
The acids, salts and metabolically labile esters are of use as antibiotics or as β-lactamase inhibitors against a range of gram-positive and gram-negative microorganisms.
[EN] SUBSTITUTED AZETIDINONE AMIDE DERIVATIVES AS ANTI-INFLAMMATORY AND ANTIDEGENERATIVE AGENTS<br/>[FR] DERIVES D'AMIDE D'AZETIDINONE SUBSTITUES UTILISES COMME AGENTS ANTI-INFLAMMATOIRES ET ANTI-DEGENERATIFS
申请人:ZENECA LIMITED
公开号:WO1995002579A1
公开(公告)日:1995-01-26
(EN) Azetidinone compounds pharmaceutically useful as inhibitors of tumour necrosis factor (TNF) production are disclosed of general formula (I) wherein Y is H, (1-4C)alkyl or (a) and X is thio, sulphinyl or sulphonyl.(FR) Composés d'azétidinone d'utilité pharmaceutique en tant qu'inhibiteurs de la production du facteur de necrose tumorale (TNF), de la formule générale (I), dans laquelle Y représente H, alkyle (1-4C) ou (a), et X représente thio, sulfinyle ou sulfonyle.
Synthesis of <i>N</i>-Acylsulfenamides through Aerobic Cross Dehydrogenative Coupling of Thiols and Amides by Supported Copper Hydroxide Catalyst
In the presence of a supported copper hydroxide catalyst Cu(OH)x/Al2O3, KF (base), and O2 (terminal oxidant), various structurally diverse N-acylsulfenamides could be synthesized through aerobic cr...