| 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) |
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| 05/25/1976 | US3959266 Process for the conversion of penicillin S-oxide into a corresponding desatoxycephalosporin |
| 05/18/1976 | US3957773 Process for preparing cephalosporin compounds from 7-adca |
| 05/18/1976 | US3957771 Process for the manufacture of aminoazetidinones |
| 05/18/1976 | US3957770 Bactericides |
| 05/18/1976 | US3957768 Bactericides |
| 05/11/1976 | US3956292 7-(α-FUROYLUREIDOARYL AND CYCLOHEXADIENYLACETAMIDO) CEPHALOSPORIN ANTIBIOTICS |
| 05/11/1976 | US3956291 7-Thioacetamido cephalosporanic acid derivatives |
| 05/11/1976 | US3956288 7-[(2,4-Dioxo-1-pyrimidinyl)acylamino]cephalosporin derivatives |
| 05/11/1976 | US3956287 Bactericides |
| 05/04/1976 | US3954802 Antibacterial |
| 05/04/1976 | US3954745 From a 7-aminocephalosporin in n,n-dimethylacetamide solvent |
| 05/04/1976 | US3954744 7-Substituted cephalosporanic acid and derivatives thereof |
| 05/04/1976 | US3954732 Bactericidal penicillins |
| 05/04/1976 | US3954731 Antibiotic |
| 04/27/1976 | US3953440 Deacetoxycephalosporins via penicillin sulfoxide rearrangement |
| 04/27/1976 | US3953439 Antibacterial |
| 04/27/1976 | US3953437 Reacting a cephalosporanic acid sulfoxide ester with a phosphorus halide |
| 04/27/1976 | US3953436 Amino acid derivative antibiotics |
| 04/20/1976 | US3951954 Novel oxofuryl ester derivatives of penicillin and cephalosporin |
| 04/20/1976 | US3951951 Cephalosporin intermediates |
| 04/13/1976 | US3950330 3-Alkylthio and 3-heterothio derivatives of [[(thioalkoxy)thiocarbonyl]oxy]acetyl cephalosporins |
| 04/13/1976 | US3950329 Fluorinated cephalosporins |
| 04/06/1976 | US3948906 Cephalosporin compounds |
| 04/06/1976 | US3948905 Substituted sulfonylacetamido cephalosporins |
| 04/06/1976 | US3948904 Antibiotics |
| 04/06/1976 | US3948903 Substituted N-(1,2-dihydro-2-oxonicotinyl)-cephalexins and -cephaloglycins |
| 03/30/1976 | US3947465 3-Alkylsilyl-2-oxazolidonone compounds and synthesis thereof |
| 03/30/1976 | US3947415 Cefamandole derivatives |
| 03/30/1976 | US3947414 Cefamandole derivatives |
| 03/30/1976 | US3947413 3-α-Substituted cephalosporins |
| 03/23/1976 | US3946005 7-Amino-3-(1,2,4-triazolinylthiomethyl)cephalosporins |
| 03/23/1976 | US3946003 Hydroxy substituted phenylglycylamido-3-heterocyclic thiomethyl cephalosporins |
| 03/23/1976 | US3946002 Amidation |
| 03/23/1976 | US3946001 Bactericides |
| 03/23/1976 | US3946000 Bactericides, poultry, animals |
| 03/23/1976 | US3945994 Penicillin and derivatives |
| 03/23/1976 | US3945888 Method for the production of cephalosporins |
| 03/16/1976 | US3944580 Bactericide |
| 03/16/1976 | US3944546 Bactericide |
| 03/16/1976 | US3944545 Process for preparing desacetoxycephalosporins |
| 03/16/1976 | US3944544 Bis-cephalosporins |
| 03/09/1976 | US3943130 [[(Thioalkoxy)thiocarbonyl]oxy]acetyl cephalosporin derivatives |
| 03/09/1976 | US3943129 Bactericide |
| 03/09/1976 | US3943128 Bactericides |
| 03/09/1976 | US3943127 7-Trifluoromethylsulfinylacetamido cephalosporins |
| 03/09/1976 | US3943126 Process for acylating a 7-aminocephalosporin |
| 03/02/1976 | US3941781 Preparation of 3-alkylthiomethyl cephalosporins |
| 03/02/1976 | US3941779 Method for producing 2-(substituted thio)-3-cephem derivatives |
| 03/02/1976 | US3941774 Bactericide |
| 02/24/1976 | US3940354 Bactericide |
| 02/17/1976 | US3939180 Penicillin esters |
| 02/17/1976 | US3939157 Microbiocides |
| 02/17/1976 | US3939151 Bactericide |
| 02/03/1976 | US3936447 7-Acylamino-desacetoxy-cephalosporanic acid esters and their production |
| 02/03/1976 | US3936446 Isocyanocephalosporanates |
| 01/27/1976 | US3935204 Cephalosporin and pharmaceutical preparations containing the same |
| 01/27/1976 | US3935202 3-(4-biphenylylcarbonyl)propionamido cephalosporin derivatives |
| 01/27/1976 | US3935198 Process for the preparation of the cephalosporanic acid derivative |
| 01/27/1976 | US3935186 Intermediates for producing semi-synthetic penicillins and cephalosporins and methods of production |
| 01/20/1976 | US3933808 Antibiotics |
| 01/20/1976 | US3933806 Antibiotics |
| 01/13/1976 | US3932465 3-R-methyl-7-amino-ceph-em-4-carboxylic acid compounds |
| 01/13/1976 | US3932398 Bactericides |
| 01/13/1976 | US3932397 Bactericides |
| 01/13/1976 | US3932396 Cyanomethylthioacetylcephalosporins |
| 01/13/1976 | US3932393 3-Methylenecephalosporins and process for production thereof |
| 01/13/1976 | US3932392 Process for the preparation of 7-aminocephalosporanic acids |
| 01/13/1976 | US3932391 Cephalosporin isocyanates |
| 01/13/1976 | US3932387 Phosphorus and sulfur containing halides, bases |
| 01/06/1976 | US3931170 3-Heterothio derivatives of (carbamoylthioacetyl)cephalosporins |
| 01/06/1976 | US3931161 Antibiotic |
| 01/06/1976 | US3931160 Bactericide |
| 01/06/1976 | US3931159 Bactericide |
| 01/06/1976 | US3930949 Process for the production of 7-amino-Δ3 -cephem derivatives |