Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
Patents for C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (7,574)
12/1977
12/20/1977US4064346 3-Acetoxymethyl-7β-(2-carboxy-methoxyimino-2-arylacetamido)ceph-3-em-4-carboxylic acids and salts thereof
12/20/1977US4064345 Cephalosporins derivatives 7-cyclized α-amino-3-heterothio
12/20/1977US4064344 7-Methoxy-3-phosphoranylidenemethyl-cephalosporins
12/20/1977US4064343 Antibiotics
12/20/1977US4064242 Antibacterial agents
12/20/1977US4064241 7[(Carboxyoxiran-3-carboxamido)phenylacetamido]cephalosporin derivatives
12/20/1977US4064137 Penicillin and cephalosporin derivatives and process for preparing the same
12/20/1977US4064122 Hydroxy-substituted cephalosporins
12/13/1977US4063019 [[[(2,4-Dioxo-1-imidazolidinyl)amino]carbonyl]amino]-acetylcephalosporin derivatives
12/13/1977US4062842 Method for preparing 7-substituted cephalosporins and 6-substituted penicillins by replacement of sulfur-containing groups
12/06/1977US4061862 Derivatives of 7-(cyclized)phenylglycyl-3-triazolo-thio methyl cephalosporin
12/06/1977US4061861 Antibiotic
12/06/1977US4061853 Virtually solvent-free crystal form of the sodium salt of Cephacetril
12/06/1977US4061852 Bactericide
12/06/1977US4061851 Bactericide
12/06/1977US4061748 7-(α-(4-Hydroxy-1,5-naphthyridine-3-carbonamido)-α-phenylacetamido) cephalosporin derivatives
12/06/1977US4061630 7-Substituted-ureido-3-carbamoyloxymethyl cephalosporin antibiotics
12/06/1977US4061628 Intermediates for producing semi-synthetic penicillins and cephalosporins and methods of production
11/1977
11/29/1977US4060688 Cephalosporin intermediates
11/29/1977US4060687 Cephalosporins having a 3-α substituted alkyl grouping
11/29/1977US4060686 Cephalosporins having a 7-(carboxy substituted α-etherified oximinoarylacetamido) group
11/29/1977US4060611 Bactericide
11/22/1977US4059591 Ureidoalkyl substituted tetrazole thiol intermediates for preparing cephalosporins
11/22/1977US4059578 7-Substituted mercaptoacetamido cephamycins
11/22/1977US4059573 Extraction of N-blocked amino acids from aqueous media
11/15/1977US4058661 7-Diacyl cephalosporins
11/15/1977US4058660 Reacting 3-trimethylsilyl-2-oxazolidinone
11/15/1977US4058610 Bactericide
11/15/1977US4058609 Bactericide
11/15/1977US4058521 Bactericides
11/08/1977US4057631 Cephalosporins, bactericide
11/01/1977US4056676 Antibiotic
11/01/1977US4056521 Penicillins, bactericide
10/1977
10/18/1977US4054738 Antibiotics
10/18/1977US4054564 Antibiotics
10/11/1977US4053597 Hydroxy-phenylacetamido cephalosporin compositions and method of use
10/11/1977US4053470 Substituted-1,2-dihydro-2-oxonicotinyl-cephalosporins
10/11/1977US4053469 Intermediates for the preparation of 7-acylamino-3-oxyiminomethyl-3-cephem-4-carboxylic acids
10/11/1977US4053468 Oxidation of amino derivatives
10/11/1977US4053286 Acylation
10/04/1977US4052554 Oxopyridazinylthiomethyl derivatives of ureidocephalosporins
10/04/1977US4052408 Oxyacetic acid compounds and process for their manufacture
10/04/1977US4052387 Method of preparation of 3-methylenecephams
09/1977
09/27/1977US4051320 Process for preparing alkoxylated derivatives of cephalosporin compounds
09/27/1977US4051133 With complex of a phosphite or a phosphine amide
09/27/1977US4051132 Process for epimerizing beta-lactam antibiotic compounds by means of an acid quench
09/27/1977US4051131 Intermediates for preparing cephalosporins
09/27/1977US4051129 Reaction of benzylidenimino group with hydrazine, amidation
09/20/1977US4049806 Cephalosporin type antibacterials
09/20/1977US4049651 Alkoxy and alkylthioalkylureido cephalosporins
09/13/1977US4048311 7-Acyl-3-(sulfonic acid and sulfamoyl substituted tetrazolyl thiomethyl)cephalosporins
09/13/1977US4048163 Process for preparation of 7-alkoxy-3-chloromethylcephems
09/13/1977US4048162 Process for preparing 3-hydroxy cephalosporins
09/13/1977US4048161 Antibiotics
09/13/1977US4048160 Process for preparation of 7-alkoxy-3-bromomethylcephems
09/13/1977US4048157 Cephalosporin antibiotics
09/13/1977US4048155 Process for preparing 7 α-alkoxycephalosporin derivatives
09/06/1977US4046761 Process for preparing cephalosporin derivatives
08/1977
08/30/1977US4045438 Cephalosporin antibiotics
08/30/1977US4045437 4-(Tetrazol-5-yl)-Δ3 -cephem compounds
08/30/1977US4045436 Antibacterial
08/30/1977US4045435 Preparation of cephalosporin ethers
08/23/1977US4044047 Bactericides
08/23/1977US4044002 Reduction process for cephalosporin sulfoxides
08/23/1977US4043991 Preparation of peptides and cephalosporins
08/16/1977US4042585 Process for preparation of 3-halomethylcephems
08/09/1977US4041162 Antibiotics, bactericides
08/09/1977US4041161 Antibiotics
08/09/1977US4041029 Acylimine cephalosporins
08/02/1977US4039660 From streptomyces, cephalosporins
08/02/1977US4039537 Thio-β-lactam cephalosporins
08/02/1977US4039536 Bactericides
08/02/1977US4039535 Pseudomonas
08/02/1977US4039534 4-Thio substituted-Δ2 -cephalosporin intermediates
08/02/1977US4039533 4-(Tetrazol-5-yl)-Δ3 -cephem compounds
08/02/1977US4039532 4-(Tetrazol-5-yl)-Δ3 -cephem compounds
07/1977
07/26/1977US4038275 Process for preparation of 3-hydroxymethylcephems
07/19/1977US4036847 Antibacterial
07/19/1977US4036835 Ring cleavage, cyclization
07/19/1977US4036834 Derivatives of 7-(α-hydroxy-substituted pyridyl carboxamido-α phΔ3 -cephem-4-carboxylic acid
07/19/1977US4036833 7-[(5'-N-methylthioacetamido)-adipoamido] cephalosporin derivatives
07/19/1977US4036829 Lactonyl esters of penicillins
07/12/1977US4035362 Methods for preparing cephalosporins
07/12/1977US4035361 Bis-trimethylsilyl cefamandole and process therefor
07/12/1977US4035354 Thioamides of beta-lactam antibiotics
07/12/1977US4035352 Preparation of 7-substituted amino-desacetoxycephalosporanic acid compounds
07/05/1977US4034092 Antibacterial
07/05/1977US4034090 Antibacterial
07/05/1977US4034088 Bactericides
07/05/1977US4033956 7[α-Amino-ω-(2,3-methylenedioxy-phenyl)acylamido]cephalosporanic acid derivatives
07/05/1977US4033950 Antibiotics
06/1977
06/28/1977US4032521 Cephalosporin phosphonic acid, sulfonic acid and sulfonamide compounds
06/21/1977US4031086 Process for cleavage of 7-amino-adipoylamino side chain in cephalosporins
06/21/1977US4031085 Preparation of 3-hydroxymethyl-7β-aminoadipoyl-7α-methoxy-3-cephem-4-carboxylic acid
06/21/1977US4031084 Process for cephalosporin antibiotic intermediates
06/21/1977US4031083 Cephalosporin antibiotics
06/21/1977US4031082 Process for preparing 3-acycloxymethyl-2-cephem compounds
06/14/1977US4029806 Nitro-β-lactam antibiotics and processes for their preparation and use
06/14/1977US4029781 1,4-Dithiin (and oxathiin)-yl cephalosporin derivatives, and compositions containing them
06/14/1977US4029656 Antibacterial
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