| Patents for C07D 257 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms (9,612) |
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| 03/16/1993 | US5194369 Silver halide color photographic material |
| 03/14/1993 | CA2077922A1 Substituted amide derivatives of piperizinylcamphorsulfonyl oxytocin antagonists |
| 03/09/1993 | US5192357 Acrylate fungicides |
| 03/04/1993 | WO1993004373A1 Calcium receptor active molecules |
| 03/04/1993 | WO1993004052A1 Amide tetrazole acat inhibitors |
| 03/03/1993 | EP0528957A1 Five-membered ring alkanoic acid leukotriene antagonists |
| 03/02/1993 | US5190975 Indan derivatives used for treating thromboses or asthma |
| 02/24/1993 | EP0528762A1 N-acyl-N-heterocyclyl- or naphthyl-alkyl amino acids as angiotensin II antagonists |
| 02/24/1993 | EP0528277A1 Tetrazoleacetic acid derivatives aldose reductase inhibitors |
| 02/23/1993 | US5189226 Ortho-substituted benzaldehydes |
| 02/23/1993 | US5189160 For preparing high molecular weight aramids by ring opening polymerization |
| 02/23/1993 | US5188816 Using polyazamacrocyclic compounds for intracellular measurement of metal ions using MRS |
| 02/18/1993 | WO1993003022A1 Compounds and methods for inhibition of hiv and related viruses |
| 02/18/1993 | WO1992014696A3 SUBSTITUTED α-AMINOALDEHYDES AND DERIVATIVES |
| 02/17/1993 | EP0527175A1 3-naphthyl-3-carboxyalkylthio or oxy substituted alkanoic acid leukotriene antagonists |
| 02/17/1993 | CN1069027A Aminocarboxylate ligands having substituted aromatic amide moieties |
| 02/16/1993 | CA2076057A1 N-acyl-n-heterocyclylalkylamino acids, processes, compositions and use |
| 02/10/1993 | EP0526543A1 Derivatives and analogues of 2-deoxy-2,3-didehydro-n-acetyl neuraminic acid and their use as antiviral agents |
| 02/09/1993 | US5185450 Reducible to blue water-soluble formazan dyes by living cells |
| 02/04/1993 | WO1993002062A1 Piperazine derivative and drug containing the same |
| 02/04/1993 | WO1993002045A1 Hydroxamate and hydrazide derivatives of polyamines and their medical use as chelating agents |
| 02/04/1993 | CA2113449A1 Piperazine derivatives and pharmaceuticals containing the same |
| 02/03/1993 | EP0525629A2 5-membered heterocycles, process for their preparation and medicaments containing them |
| 02/03/1993 | EP0525516A2 Derivatives of beta substituted cinnomic acid |
| 02/02/1993 | CA2074867A1 Aminocarboxylate ligands having substituted aromatic amide moieties |
| 01/28/1993 | CA2075354A1 Beta-substituted cinnamic acid derivative |
| 01/28/1993 | CA2074685A1 5-membered heterocyclic compounds, processes for preparing them and pharmaceutical compositions containing these compounds |
| 01/27/1993 | EP0524639A2 Process for the labelling of substances with technetium or rhenium |
| 01/27/1993 | CN1068333A Pharmacologically active hydrazine derivatives and processes for preparation thereof |
| 01/26/1993 | US5182301 Diphenylethylene derivatives pharmaceutical compositions containing same and treatment methods |
| 01/26/1993 | US5182280 Derivatives of benzimidazole and their use as antihistamines |
| 01/21/1993 | WO1993001165A2 Aromatic compounds, compositions containing them and their use in therapy |
| 01/21/1993 | CA2110725A1 Aromatic compounds, compositions containing them and their use in therapy |
| 01/13/1993 | EP0522547A2 Carbonyl-containing degradable chelants, uses and compositions thereof |
| 01/13/1993 | EP0522007A1 A fonctionalized complexand |
| 01/13/1993 | CA2073578A1 Carbonyl-containing degradable chelants, uses and compositions thereof |
| 01/12/1993 | US5179123 LTB4 synthesis inhibitors |
| 01/07/1993 | EP0521827A1 Pharmacological active hydrazin derivatives and process for their preparation |
| 01/05/1993 | US5177092 Medicinal use of certain tetrazolium salts |
| 12/23/1992 | EP0519485A1 Propellant for gas generators |
| 12/22/1992 | US5173500 Pharmaceutical compositions and methods of sulphonamides containing a tetrazolyl radical |
| 12/16/1992 | EP0260305B1 Quinolinyl ether tetrazole as agent for the treatment of hypersensitive ailments |
| 12/15/1992 | US5171882 Leukotriene antagonists |
| 12/10/1992 | WO1992021648A1 Amino acid derivative anticonvulsant |
| 12/10/1992 | WO1992021644A1 Ltb4 synthesis inhibitors |
| 12/09/1992 | CN1066847A Angiotensin ii receptor blocking 2,3,6 substituted quinazolinones |
| 12/09/1992 | CN1019388B Process for preparing n-alkylsulfurylanilline derivatives |
| 12/08/1992 | US5169845 Piperazine derivatives |
| 12/02/1992 | EP0515420A1 Nitric acid esters of cyclohexanol derivatives. |
| 12/01/1992 | US5168103 Neuroprotectants, anticonvulsants |
| 11/24/1992 | CA1310640C Substituted thioureas, isothioureas and carbodiimides |
| 11/12/1992 | WO1992019748A1 Herpesvirus particles and vaccine |
| 11/12/1992 | WO1992019665A1 Cyclic aromatic amide oligomers |
| 11/11/1992 | CN1066073A Polyazamacrocyclic compounds for complexation of metal ions |
| 11/10/1992 | US5162109 Zwitterion Complexes of Paramagnetic Ions |
| 11/04/1992 | EP0511275A1 Chelating compounds |
| 10/27/1992 | US5159097 Alkenoic acid derivatives |
| 10/27/1992 | CA1309557C Leukotriene antagonists |
| 10/22/1992 | DE4212840A1 New 7-beta-amino-3-(3(tetrazolin-5-thion-1-yl)-propen-1-yl)-3-cephem-4 carboxylic acids - are intermediates for antibacterial cephalosporin(s), prepd. by reacting tetrazolin-5-thion-1-yl-ethanal with cephem-3-yl-methyl-tri:phenyl-phosphonium iodide |
| 10/13/1992 | US5155224 Protonated, insoluble magnetic resonance imaging contrast agents |
| 10/13/1992 | CA1308708C Cephalosporins |
| 10/12/1992 | WO1992018117A1 Anti-thrombotic peptide and pseudopeptide derivatives |
| 10/06/1992 | US5153210 Compounds |
| 09/23/1992 | EP0505098A1 Imidazole derivatives bearing acidic functional groups as angiotensin II antagonists |
| 09/20/1992 | CA2063122A1 Imidazole derivatives bearing acidic functional groups as angiotensin ii antagonists |
| 09/16/1992 | WO1992016494A1 Long chain antiviral compounds |
| 09/16/1992 | EP0503162A1 Azole derivatives, process for their preparation and their application |
| 09/16/1992 | CA2106068A1 Long chain antiviral compounds |
| 09/09/1992 | EP0502110A1 (hetero) 4-arylmethoxy phenyl diazole derivatives, method for preparing same, and their therapeutical applications. |
| 09/02/1992 | EP0500919A1 Novel magnetic resonance imaging agents |
| 09/01/1992 | US5143931 Leukotriene antagonists containing tetrazolyl groups |
| 08/25/1992 | US5142029 Silver halide photographic material containing a compound with variable development restraining ability |
| 08/25/1992 | US5141843 Developer liquid for high contrast development |
| 08/23/1992 | WO1992014696A2 SUBSTITUTED α-AMINOALDEHYDES AND DERIVATIVES |
| 08/23/1992 | CA2104602A1 Substituted .alpha.-aminoaldehydes and derivatives |
| 08/19/1992 | CN1063689A Process for preparing tetrazde devivatives and their use |
| 08/19/1992 | CN1063687A Tetrazole derivatives and pharmaceutical |
| 08/18/1992 | US5140046 Slow reacting substance of anaphylaxis antagonists |
| 08/18/1992 | US5140038 Thromboxane A2 antagonists |
| 08/12/1992 | EP0498334A1 2,4- and 2,5-bis-(tetrazolyl)pyridines, process for their preparation and their use as medicines |
| 08/12/1992 | EP0497926A1 Multi-site metal chelating agents |
| 08/11/1992 | US5138068 1-phenyl 5-oxotetrazolines |
| 08/11/1992 | US5137886 Insecticidal compounds |
| 08/11/1992 | US5136868 Herbicidal 1-aryl-4-substituted-1,4-dihydro-5h-tetrazol-5-ones and sulfur analogs thereof |
| 08/06/1992 | CA2060622A1 2,4- and 2,5-bistetrazolylpyridines, a process for the preparation thereof and the use thereof as pharmaceuticals |
| 08/05/1992 | EP0497150A1 Angiotensin II receptor blocking 2,3,6-substituted quinazolones |
| 08/05/1992 | EP0497121A1 Tetrazole derivatives, process for their production and their application |
| 08/04/1992 | US5135941 LTB4 synthesis inhibitors |
| 08/04/1992 | US5135940 Antiallegens, antiinflammatory agents |
| 08/04/1992 | US5135938 Leukotriene antagonists |
| 08/01/1992 | CA2060387A1 Tetrazole derivatives, process for their preparation and their use |
| 07/31/1992 | CA2060154A1 Angiotensin ii receptor blocking quinazolones |
| 07/30/1992 | WO1992012709A1 Aryl macrocyclic compositions for treating viral infections |
| 07/30/1992 | CA2100574A1 Aryl macrocyclic compositions for treating viral infections |
| 07/29/1992 | EP0496561A2 [[(2-Amino-3,4-dioxo-1-cyclobuten-1-yl)amino]alkyl]-acid derivatives |
| 07/29/1992 | EP0496378A1 Biphenylderivatives, drugs containing these compounds and processes for their preparation |
| 07/29/1992 | CN1017622B Indan derivatives and process for preparation thereof |
| 07/25/1992 | CA2059857A1 Biphenyl derivatives, pharmaceutical compositions containing these compounds and processes for preparing them |
| 07/22/1992 | EP0495626A1 Process for the preparation of tetrazole derivatives |
| 07/22/1992 | EP0495526A1 Tetrazoleacetic acid derivatives having aldose reductase inhibitory activity |