C07D 499 - Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring

Patents for C07D 499 - Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (3,448)
01/1977
01/11/1977	US4002530 6-Aminopenicillanic acid derivative
01/04/1977	US4001264 6-aminopenicillanic acid
01/04/1977	US4001218 Penicillins
12/1976
12/28/1976	US4000129 Chemical intermediate for cephalosporins
12/14/1976	US3997533 Process for the preparation of 7-acylamino-desacetoxycephalosporanic derivatives
12/14/1976	US3997527 Antibiotic
12/07/1976	US3996236 Antibacterial
12/07/1976	US3996235 6-Isocyanato-6-substituted penicillins
12/07/1976	US3996208 6-Acylamino-penam-3-carboxylic acids
11/1976
11/30/1976	US3994965 D-N-(guanylureidoacetyl)-α-aminophenyl acetic acid and D-N-(guanylureidoacetyl)-α-aminophenyl acetyl chloride
11/30/1976	US3994939 Bactericides
11/30/1976	US3994912 1-Oxides of Schiff bases of 6-aminopenicillanic acid
11/30/1976	US3994911 Phosphorylated
11/30/1976	US3994883 6- or 7- phosphite amido compounds
11/30/1976	US3994877 Antibacterial
11/30/1976	US3994876 6-[α-AMINO-ω-(2,3-METHYLENEDIOXYPHENYL)ACYLAMIDO]PENICILLANIC ACID DERIVATIVES
11/30/1976	US3994875 Cephalosporins, penicillins
11/30/1976	US3994874 Antibacterial
11/23/1976	US3993770 Penicillins
11/23/1976	US3993646 Process for the ring expansion of penicillins to cephalosporin compounds
11/23/1976	US3993642 Penicillins
11/16/1976	US3992394 6-Amino-2,2-dimethyl-3-(5-tetrazolyl)penam process and intermediates therefor
11/16/1976	US3992371 Bactericides
11/09/1976	US3991046 Penicillin antibiotics
11/02/1976	US3989688 Process for producing 6-amino penicillanic acid derivatives
11/02/1976	US3989687 4-Oxo-1-pyridinyl penicillin derivatives
11/02/1976	US3989685 Process for making a 2'-halopenicillin
10/1976
10/26/1976	US3988333 Tri-substituted aluminum salts or di-substituted aluminum salts of carboxyl group-containing, pharmaceutically effective compounds
10/26/1976	US3988325 7-Carboxy or 2,2,2-trichloroethoxy carbonyl- cephalosporins
10/19/1976	US3987178 Gram-negative and gram-positive bactericides
10/19/1976	US3987032 Antibiotics
10/12/1976	USRE29003 Antibiotics
10/12/1976	US3985764 Production of fused oxazoline azetidinones
10/12/1976	US3985737 3-Sulfonate esters of cephalosporin
10/05/1976	US3984397 Cyclization
09/1976
09/28/1976	US3983105 Penicillins
09/21/1976	US3982011 Penicillins
09/21/1976	US3981866 Penicillin monoesters, their production and intermediates thereof
09/21/1976	US3981865 Bis-type penicillins and process for producing the same
09/14/1976	US3980793 Carbonate esters of penicillins and compositions and methods for treatment of bacterial infections
09/14/1976	US3980666 Process for the resolution of D,L-penicillamine and salts formed during said process
09/14/1976	US3980639 Amoxicillin derivatives
09/14/1976	US3980637 Production of amoxicillin
08/1976
08/31/1976	US3978078 Process for the preparation of ampicillin
08/31/1976	US3978056 Penicillins
08/31/1976	US3978053 Process for producing cephalosporins
08/24/1976	US3976680 Production of an ester of one enantiomer of an α-amino acid in the form of a salt with an optically active acid
08/17/1976	US3975385 Antibiotic
08/17/1976	US3975376 Pencillins having a 6β-(α-etherified oximino) acylamido group
08/17/1976	US3975375 Bactericides
08/10/1976	US3974288 Antibacterial activity
08/10/1976	US3974150 Penicillin, antibiotics
08/10/1976	US3974142 Bactericides
08/10/1976	US3974141 Imidazolidinyl-carbamidobactericides
08/10/1976	US3974140 Ureidoacetamido-penicillins
08/03/1976	US3972872 6-[α-(ω-Guanidinoalkanoylamido)acylamido]penicillanic acids
08/03/1976	US3972870 Imidazolidinyl-carbamido-bactericides
08/03/1976	US3972869 Nitrogen heterocyclic substituted, bactericide
07/1976
07/27/1976	US3971776 Thio-β-lactam penicillins
07/27/1976	US3971775 Process for preparing penicillin antibiotics
07/13/1976	US3969342 Derivatives of penicillanic acid and compositions containing them
07/06/1976	US3968108 Or a cepham compound
06/1976
06/29/1976	US3966765 Process for producing benzothiopyrans
06/29/1976	US3966738 Azetidine derivatives
06/29/1976	US3966719 4-(Tetrazol-5-yl)-Δ3 -cephem compounds
06/29/1976	US3966710 Aminomethylarylmethylpenicillin derivatives
06/29/1976	US3966709 Penicillins and cephalosporins and their production
06/22/1976	US3965093 Bactericide
06/15/1976	US3963704 Penicillin esters
06/15/1976	US3963702 Phthalide penicillin ester intermediates
06/08/1976	US3962228 3-benzoylpropionamido cephalosporanic derivatives
06/08/1976	US3962226 3-nitrooxycepham compounds and process for preparing desacetoxycephalosporins therefrom
06/08/1976	US3962216 Penicillins
06/08/1976	US3962215 Phosphorylation, acylation, water, acid chloride, alcohol
06/08/1976	US3962214 Process for preparing amino substituted β-lactam antibiotics
06/01/1976	US3960849 Amino-1,2,4-oxadiazolyl-3-acetyl cephalosporins
06/01/1976	US3960845 Process for preparing 7β-acylamino-7α-alkoxycephalosporins or 6β-acylamino-6α-alkoxypenicillins
06/01/1976	US3960844 Preparation of 6-acylamino-2-methyl-2-halomethyl penams
06/01/1976	US3960843 Process for the preparation of esters of N-blocked penicillin acids which comprises reacting the acid or a salt thereof with a primary amine and a nitrosating agent
05/1976
05/25/1976	US3959259 Bactericides
05/25/1976	US3959258 Ureidoacetamido-penicillins
05/18/1976	US3957811 Process for 3-(1-[arylmethyl]tetrazol-5-yl)penams
05/18/1976	US3957771 Process for the manufacture of aminoazetidinones
05/18/1976	US3957764 Bactericides
05/18/1976	US3957759 Penicillins
05/18/1976	US3957758 6-acyl derivatives of aminopenicillanic acid
05/18/1976	US3957580 Immobilized microbial cells
05/11/1976	US3956323 Antibiotics
05/11/1976	US3956288 7-[(2,4-Dioxo-1-pyrimidinyl)acylamino]cephalosporin derivatives
05/11/1976	US3956287 Bactericides
05/11/1976	US3956279 Crystalline pivaloyloxymethyl d(-)-α-aminobenzylpenicillinate
05/04/1976	US3954826 Process for producing α-sulfophenylacetic acid derivatives
05/04/1976	US3954802 Antibacterial
05/04/1976	US3954735 Derivatives of α-aminobenzylpenicillin
05/04/1976	US3954734 Novel antibacterial amide compounds and process means for producing the same
05/04/1976	US3954733 Antibiotic
05/04/1976	US3954732 Bactericidal penicillins
05/04/1976	US3954731 Antibiotic
05/04/1976	US3954730 6-(Substituted-cycloalkylcarboxamide) penicillanic acids
04/1976
04/27/1976	US3953428 Ampicillin derivatives substituted by heterocyclic acyl group

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