C07D 505 - Heterocyclic compounds containing 5-oxa-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. oxacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring

Patents for C07D 505 - Heterocyclic compounds containing 5-oxa-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. oxacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (556)
05/1981
05/26/1981	US4269773 Fused oxazolidine compounds
05/19/1981	CA1101417A1 Thiadiazolyl cephalosporin analogues
05/12/1981	CA1100962A1 Haloarylmalonamidooxacephalosporins
04/1981
04/28/1981	US4264597 Fungicides
04/21/1981	CA1099715A1 1-oxadethiacepham compounds
03/1981
03/31/1981	US4259485 Crystallization process
03/10/1981	US4255424 Antibiotics
02/1981
02/24/1981	US4252953 Antibiotic crystalline epimer
02/03/1981	CA1095041A1 0-2-isocephem antibacterial agents and processes and intermediates for their production
01/1981
01/07/1981	EP0020883A1 A process for preparing 3-beta-amino-4-beta-substituted 2-azetidinones and 3-(2,2-dihalogenovinyl)-imino-4-beta-substituted 2-azetidinone and 3-beta-(2,2-dihalogenovinyl)-amino-4-beta-substituted 2-azetidinone intermediates
12/1980
12/02/1980	CA1090806A1 Oxazolines
11/1980
11/25/1980	CA1090336A1 Cephalosporin analogues
11/18/1980	US4234724 Cephalosporin analogues and processes for the preparation thereof
11/12/1980	EP0018811A1 Antibiotic crystalline epimer, its preparation and pharmaceutical composition containing it
11/12/1980	EP0018760A1 D-Sesquisodium salt of an oxa-beta-lactam diacid compound and its preparation
11/12/1980	EP0018595A2 7-N-Heterocyclyl cephalosporins, a process for preparing and a pharmaceutical composition comprising the same
11/12/1980	EP0018594A2 Process for the preparation of 3-(1-hydroxyethyl)-azetidinones
11/11/1980	US4233216 Intermediates for oxadethiacephalosporins
11/04/1980	US4232151 Antibiotics
10/1980
10/07/1980	US4226866 Bactericides, acylation
10/07/1980	US4226864 7-Substituted aminoacetamido oxadethiacephalosporins
09/1980
09/16/1980	US4223133 Cephalosporin reduction process
09/16/1980	US4223037 Animal growth promoter, bactericides, penicillins
09/09/1980	CA1085392A1 Arylmalonamido-1-oxadethiacephalosporins
09/02/1980	US4220766 Oxazolines
08/1980
08/20/1980	EP0014567A1 Processes for preparation of beta-lactam compounds
07/1980
07/08/1980	US4211702 Triarylphosphite-halogen complex halogenating agent
06/1980
06/17/1980	US4208412 β-Lactam antibiotics
06/10/1980	CA1079278A1 7-substituted aminoacetamido oxadethiacephalosporins
05/1980
05/27/1980	CA1078380A1 Cephalosporin analogues
05/06/1980	US4201782 Bactericides
05/06/1980	US4201779 Bactericides
04/1980
04/29/1980	US4200571 Antibiotics, chemical intermediates, oxacephems
04/22/1980	CA1076125A1 Intermediates for cephalosporin analogues
04/08/1980	US4197402 Cephalosporin analogues
01/1980
01/29/1980	CA1070688A1 Cephalosporin analogues
01/15/1980	US4183928 Haloarylmalonamidooxacephalosporins
01/15/1980	US4183855 Oxazolinoazetidinylbutyric acid derivatives
12/1979
12/25/1979	US4180571 Arylmalonamido-1-oxadethiacephalosporins
12/12/1979	EP0005889A1 Process for the preparation of beta-lactam derivatives, the novel derivatives so obtainable and pharmaceutical compositions containing them
10/1979
10/09/1979	CA1064020A1 .beta.-LACTAM ANTIBIOTICS AND PROCESSES FOR THEIR PREPARATION AND USE
09/1979
09/11/1979	US4167630 Process for epimerizing beta-lactam antibiotic compounds, and related products
08/1979
08/14/1979	CA1060432A1 7 .alpha. METHOXYCEPHALOSPORIN DERIVATIVES
07/1979
07/03/1979	US4159984 Metal and proton donor
04/1979
04/17/1979	CA1052787A1 1-oxacephems and intermediates therefor
04/03/1979	US4147693 βLactam antibiotics and process for their use
03/1979
03/06/1979	US4143038 Cephalosporin analogues
02/1979
02/06/1979	US4138486 Bactericides
09/1978
09/12/1978	US4113946 Δ2,3 -1,4-Morpholine-2-carboxylic acid derivatives as antibacterial agents
08/1978
08/22/1978	US4108992 Bactericides
01/1978
01/03/1978	US4066831 Antibiotics
12/1977
12/27/1977	US4065623 O-2-Isocephem-4-carboxylic acid derivatives as antibacterial agents
09/1977
09/27/1977	US4051132 Process for epimerizing beta-lactam antibiotic compounds by means of an acid quench
03/1977
03/22/1977	US4013653 1-oxacephems
03/15/1977	US4012383 Bactericides
02/1977
02/08/1977	US4007177 Cephalosporin derivatives

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