| 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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| 06/14/1977 | US4029655 Method of preparing stable sterile crystalline cephalosporins for parenteral administration |
| 06/14/1977 | US4029654 Antibacterial |
| 06/14/1977 | US4029653 Antibacterial |
| 06/14/1977 | US4029651 Process for preparing 3-acyloxymethyl-2-cephem compounds |
| 06/14/1977 | US4029645 Mercury intermediates useful in the preparation of 2-alkoxy cephalosporins |
| 06/07/1977 | US4028408 From a sulfenyl halide and an orthoalkanoate |
| 06/07/1977 | US4028355 Crosslinked styrene-divinyl benzene adsorber, acidification |
| 06/07/1977 | US4028354 Bactericides |
| 05/31/1977 | US4026888 Certain derivatives of particular 3-thiolated cephalosporins |
| 05/31/1977 | US4026887 Cephalosporin antibiotics |
| 05/31/1977 | US4026886 7-Acyl-7-arylthiocephalosporins |
| 05/24/1977 | US4025626 Antibacterial |
| 05/24/1977 | US4025622 Novel sugar ureide and thioureide derivatives |
| 05/24/1977 | US4025509 Antibiotics |
| 05/17/1977 | US4024249 Heteroarylacetamido cephalosporin |
| 05/17/1977 | US4024152 4-Dithio-3-imido-azetidin-2-ones |
| 05/17/1977 | US4024137 Antibiotic |
| 05/17/1977 | US4024135 (Carbamoyl)pyridino derivatives of ureidocephalosporins |
| 05/17/1977 | US4024134 Syn isomers of cephalosporins having α-hydroximino- or α-acyloxyiminoacylamido groups at position-7 |
| 05/17/1977 | US4024133 7β-[2-Etherified oximino-2-(thienyl-,furyl- or pyridylacetamido)]cephalosporins |
| 05/17/1977 | US4024129 Process for the preparation of heterocyclic compounds |
| 05/10/1977 | US4022895 Substituted phenylglycylcephalosporins |
| 05/10/1977 | US4022773 7-acylamino-3-substituted-3-cephem-4-carboxylic acids, 1-oxides |
| 05/03/1977 | US4021426 Oxalyl halide, acid binders; halogenation, hydrolysis |
| 04/26/1977 | US4020060 7-[α-Amino-ω-(3,4-methylenedioxyphenyl)acylamido]cephalosporanic acid derivatives |
| 04/26/1977 | US4020058 Improvements in or relating to cephalosporin antibiotics |
| 04/26/1977 | US4020057 Antibacterial, antibiotics |
| 04/19/1977 | US4018921 Bactericides |
| 04/19/1977 | US4018776 Rearrangements, photochemistry |
| 04/19/1977 | US4018761 Thio-β-lactam cephalosporins |
| 04/19/1977 | US4018760 Thio-β-lactam cephalosporins |
| 04/19/1977 | US4018759 3-Heterocyclicthiomethylcephalosporins |
| 04/12/1977 | US4017488 Process for preparing 7β-acylamino-7α-alkoxycephalosporins |
| 04/12/1977 | US4017487 Effective against grampositive and gramnegative bacteria |
| 04/12/1977 | US4017485 Antibiotics |
| 04/05/1977 | US4016160 7-Dihaloalkanamido-3-heterocyclic-thiomethyl-3-cephem-4-carboxylic acids |
| 04/05/1977 | US4016159 Acylamino-cephem-carboxylic acids containing an amidino or guanidino group in the molecule |
| 04/05/1977 | US4016158 Bactericides |
| 04/05/1977 | US4016155 Process for preparing cephalosporin derivatives |
| 03/29/1977 | US4015000 6-Acylamino-penam-3-carboxylic and 7-acylamino-3-cephem-4-carboxylic acids |
| 03/29/1977 | US4014915 Oxime carbonates |
| 03/29/1977 | US4014874 Process for the manufacture of 3-substituted thiomethyl-7-amino-2-cephem-4-carboxylic acid compound |
| 03/29/1977 | US4014873 Process for the production of 7-acylamidocephalosporins |
| 03/29/1977 | US4014872 Antibiotics |
| 03/29/1977 | US4014869 Antibiotics |
| 03/29/1977 | US4014868 Preparation of β-lactam antibiotics |
| 03/22/1977 | US4013651 3-substituted amino-cephalosporins |
| 03/22/1977 | US4013650 Process for the manufacture of 3-methylene-cepham compounds |
| 03/22/1977 | US4013645 Antibiotics |
| 03/15/1977 | US4012518 Nitro-β-lactam antibiotics and processes for their preparation and use |
| 03/15/1977 | US4012382 Antibacterial |
| 03/15/1977 | US4012381 Process for preparing cephalosporins and intermediates |
| 03/15/1977 | US4012380 Intermediates for cephalosporin antibiotics |
| 03/15/1977 | US4012379 7-Acetoacetamidocephem compounds |
| 03/08/1977 | US4011215 Antibiotics |
| 03/08/1977 | US4011214 3-(morpholinoalkoxyiminomethyl)cephem compounds |
| 03/01/1977 | US4010264 7-[3-Substituted isoxazol-5-yl]-acetamido-cephalosporanic acids and their anti-bacterial use |
| 03/01/1977 | US4010156 Process for the rearrangement of penicillins to cephalosporins and intermediate compounds thereof |
| 03/01/1977 | US4010155 Antibiotic SF-1623 substance |
| 02/22/1977 | US4009159 Penicillins |
| 02/15/1977 | US4008231 Preparation of 3-methoxymethylcephalosporins |
| 02/15/1977 | US4008230 Process for preparing 3-hydroxy cephalosporins |
| 02/15/1977 | US4008229 Penicillin or cephalosporin |
| 02/15/1977 | US4008228 Process for preparing 3-methyl-3-cephem antibiotics |
| 02/15/1977 | US4008227 Antibiotic |
| 02/15/1977 | US4008226 Intermediates for preparing semi-synthetic cephalosporins and processes relating thereto |
| 02/08/1977 | US4007202 Cephalosporin intermediates |
| 02/08/1977 | US4007178 Antibiotic |
| 02/08/1977 | US4007177 Cephalosporin derivatives |
| 02/08/1977 | US4007176 Cephalosporin derivatives |
| 02/08/1977 | US4007174 Cephalosporin compounds |
| 02/08/1977 | US4007173 α-amino-α-(ureidophenyl)acetamidocephalosporins |
| 02/08/1977 | US4007168 Process for preparing penicillins derivatives |
| 02/01/1977 | US4006230 7-D-(α-acylamino-arylacetamido)-cephalosporanic acid derivatives |
| 02/01/1977 | US4006138 Crystalline form of sodium O-formylcefamandole |
| 01/25/1977 | US4005081 3-Heterothiomethyl-7α-methoxy-7β-tetrazolylmethylthioacetamido-3-cephem derivatives |
| 01/25/1977 | US4005074 Process for cleaving an imido side chain from penicillins and cephalosporins |
| 01/18/1977 | US4003896 Method of preparing a sparingly soluble complex of cephalexin |
| 01/18/1977 | US4003894 Preparation of 7-substituted amino-desacetoxycephalosporanic acid compounds |
| 01/18/1977 | US4003893 3-Heterothio[(thioalkyl)thioacetyl]cephalosporanic derivatives |
| 01/11/1977 | US4002748 Heating and cooling |
| 01/04/1977 | US4001409 Antibiotics |
| 01/04/1977 | US4001239 Cephalosporin cleavage process |
| 01/04/1977 | US4001226 3-(substituted)carbonylamino cephem derivatives |
| 01/04/1977 | US4001225 Antibacterial |
| 12/28/1976 | US4000134 Bactericides |
| 12/28/1976 | US4000133 Substituted 7-styryl-carbonyloxy-acetamido cephalosporanic |
| 12/21/1976 | US3998950 7-αHydrazinoacetamido derivatives of cephalosporanic |
| 12/21/1976 | US3998821 Reduction, cleavage of carbon-phosphorus bond |
| 12/21/1976 | US3998819 Antibacterial agents |
| 12/21/1976 | US3998818 Antibacterial agents |
| 12/21/1976 | US3998817 Process for producing cephalosporanic acid derivatives |
| 12/21/1976 | US3998816 7-[5-N-(n-Butoxyethoxy carbonyl and 2-chloroethoxy carbonyl)-amino] cephalosporins C |
| 12/14/1976 | US3997533 Process for the preparation of 7-acylamino-desacetoxycephalosporanic derivatives |
| 12/14/1976 | US3997532 Intermediates for producing semi-synthetic cephalosporins |
| 12/14/1976 | US3997528 Cephalosporin compounds |
| 12/07/1976 | US3996219 Bactericides |
| 12/07/1976 | US3996218 Oxopyridazinylthiomethyl derivatives of ureidocephalosporins |
| 12/07/1976 | US3996217 Bactericides |
| 12/07/1976 | US3996216 Bactericides |