| Patents for C07D 293 - Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms (553) |
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| 10/22/1986 | EP0198634A2 Quaternized tellurium salt fog inhibiting agents for silver halide photography |
| 08/19/1986 | US4607000 Amido substituted divalent chalcogenide fog inhibiting agents for silver halide photography |
| 07/16/1986 | EP0187233A1 S-(carbamoyl-phenylselenyl) derivatives of mercaptans, process for their preparation and pharmaceutical preparations containing them |
| 06/03/1986 | US4593093 Acyl derivatives |
| 03/18/1986 | US4576905 Photographically useful chalcogenazoles, chalcogenazolines, and chalcogenazolinium and chalcogenazolium salts |
| 09/18/1985 | EP0154851A1 Benzisoselenazolethiones,process for their preparation and pharmaceutical products containing these compounds |
| 09/03/1985 | US4539408 Condensation of tert-amine base with hydroxyalkanesulfonic acid or |
| 05/08/1985 | EP0140492A1 L-arginine isoxicamate |
| 04/24/1985 | EP0138481A2 Leukotriene biosynthesis inhibitors |
| 04/24/1985 | EP0138362A2 Photographic materials containing chalcogenazoles, chalcogenazolines and chalcogenazolinium and chalcogenazolium salts |
| 04/10/1985 | EP0136847A2 Photographically useful chalcogenazolylidene and chalcogenazolium dyes and methods for their preparation |
| 04/03/1985 | EP0135863A2 Carbonylmethyleneheterocycles containing trihalogenmethyl-groups, process for their preparation and light-sensitive mixtures containing them |
| 03/27/1985 | EP0135348A2 Improvements in or relating to radiation sensitive compounds |
| 03/12/1985 | US4504668 Process for the preparation of N-sulfoalkyl quaternary salts of nitrogen heterocyclics |
| 02/05/1985 | CA1182115A1 Process for the preparation of sulfoalkyl quarternary salts |
| 11/21/1984 | EP0125875A2 Improvements in or relating to perester compounds |
| 11/20/1984 | US4483799 Sulfoalkylating agents |
| 11/14/1984 | EP0125140A2 Improvements in or relating to radiation sensitive plates |
| 11/13/1984 | CA1177824A1 Acyl derivatives |
| 11/06/1984 | CA1177409A1 2-phenyl-1.2-benzisoselenazol-3(2h)-one containing pharmaceutical preparations and their use |
| 10/02/1984 | CA1175431A1 Tri-substituted imidazole derivatives, processes for their manufacture, pharmaceutical preparations containing them, and their use |
| 08/21/1984 | CA1173042A1 Photographic speed increasing and latent image stabilizing compounds, silver halide emulsions, and photographic elements |
| 08/08/1984 | EP0115394A2 Phenothiazone derivatives and analogs |
| 07/03/1984 | US4458072 Acyl derivatives |
| 06/12/1984 | US4454068 Antiinflammatory |
| 05/29/1984 | US4451557 Photographic speed increasing and latent image stabilizing compounds, silver halide emulsions, and photographic elements |
| 05/29/1984 | CA1168243A1 Benzisoselenazolones, process for producing the same and pharmaceutical preparations containing the same |
| 05/08/1984 | US4447431 Viricides, antiinflammatory and suncreen agent |
| 02/22/1984 | EP0100898A1 Cycloalkyl derivatives of benzisoselenazolones, process for their preparation and pharmaceutical compositions containing them |
| 01/25/1984 | EP0098934A1 2-Methylseleno-benzamides |
| 11/29/1983 | US4418069 Benzisoselenazolones and process for the treatment of rheumatic and arthritic diseases using them |
| 03/29/1983 | US4378426 Photographic speed increasing and latent image stabilizing compounds, silver halide emulsions, and photographic elements |
| 01/05/1983 | EP0068425A1 Process for preparing selenium-methylene blue, radioactive selenium methylene blue, its preparation and use in compounds for the delineation of epithelial adenoma corpuscles |
| 11/17/1982 | EP0064667A1 Process for the preparation of sulfoalkyl quaternary salts |
| 10/05/1982 | US4352799 Antisclerotic, antiinflammatory |
| 07/07/1982 | EP0055428A1 Bis-(3-sulfopropyl)ethers, process for their preparation and their use as alkylating agents for organic bases |
| 04/28/1982 | EP0050558A2 Photographic emulsions and elements capable of forming direct-positive images |
| 04/21/1982 | EP0049855A2 Cephalosporin derivatives, process for their preparation, pharmaceutical compositions containing them and intermediates for their preparation |
| 02/03/1982 | EP0045081A2 Trisubstituted imidazole derivatives, processes for preparing them, pharmaceutical compositions containing them, and their use |
| 02/03/1982 | EP0044971A1 2-Phenyl-1.2-benzisoselenazol-3(2H)-one containing pharmaceutical preparations and their use |
| 01/27/1982 | EP0044453A2 New benzisoselenazolones, process for producing the same and pharmaceutical preparations containing the same |
| 12/29/1981 | US4308390 Process for the production of sulphoalkyl quaternary salts |
| 09/01/1981 | US4287348 By reacting a hydroxyalkylsulfonic acid with a nitrogen-containing heterocyclic base |
| 08/26/1981 | EP0034279A2 Sulfoalkylating agents, process for their preparation and their use in the manufacture of quanternary sulfoalkyl salts |
| 05/12/1981 | CA1100966A1 Process for the preparation of sulphoalkyl quaternary salts |
| 08/05/1980 | US4216284 Color photographic light-sensitive material |
| 03/20/1979 | CA1051033A1 Ring opening of thiazole or selenazole compounds |
| 02/06/1979 | CA1048032A1 Aminonaphthoselenazole |
| 02/22/1977 | US4009176 Hydrolysis, acylation, ring closure |
| 01/18/1977 | US4003910 Meso-ionic se- and s-containing tetrazoles |
| 12/07/1976 | US3996215 Photographic filter or antihalation dyes |
| 07/13/1976 | US3969364 Multistage |
| 03/09/1976 | US3943142 Dye intermediates and their preparation and use in the synthesis of methine dyes |