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Class Information
Number: 544/236
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is six-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) > The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.) > Polycyclo ring system having a 1,2-diazine ring as one of the cyclos > Bicyclo ring system having the 1,2-diazine ring as one of the cyclos > At least three ring nitrogens in the bicyclo ring system
Description: Compounds wherein the bicyclo ring system includes at least one ring nitrogen in addition to the two ring nitrogens of the six-membered hetero ring.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5034051 |
Heterocyclic compounds |
Jul. 23, 1991 |
| 5025011 |
Fused pyridines active on the cardiovascular system |
Jun. 18, 1991 |
| 5025096 |
Preparation of indole and indole derivatives |
Jun. 18, 1991 |
| 5017212 |
Sulfonylurea compounds and herbicidal use |
May. 21, 1991 |
| 5008274 |
Carbostyril derivatives and salts thereof and pharmaceutical composition for inhibiting adhesion of thrombocytes |
Apr. 16, 1991 |
| 5002944 |
Compounds having cardiotonic activity |
Mar. 26, 1991 |
| 4999044 |
Heterocyclic sulfonamides |
Mar. 12, 1991 |
| 4996204 |
Pyrido[2,3-d]pyridazinones as aldose reductase inhibitors |
Feb. 26, 1991 |
| 4994474 |
Alkyl- or aryl-aminoalkoxy-benzene-sulfonyl indoles |
Feb. 19, 1991 |
| 4994571 |
Process of producing sulfonylurea derivatives |
Feb. 19, 1991 |
| 4954629 |
Process and intermediates for the preparation of oxophthalazinyl acetic acids and analogs thereof |
Sep. 4, 1990 |
| 4948418 |
2,3-dihydrobenzo[b]thiophenes |
Aug. 14, 1990 |
| 4942169 |
Piperidine derivative and pharmaceutical composition |
Jul. 17, 1990 |
| 4921851 |
Cephem compounds, their production and use |
May. 1, 1990 |
| 4921527 |
Herbicidal sulfonamides |
May. 1, 1990 |
| 4910199 |
Imidazo[1,2-]pyridazines for cortical cholinergic deficiencies |
Mar. 20, 1990 |
| 4908056 |
Heterocyclic acyl sulfonamides |
Mar. 13, 1990 |
| 4902335 |
Benzo-fused cyclic compounds |
Feb. 20, 1990 |
| 4881967 |
Heterocyclic 2,3-dihydrobenzofuran herbicides |
Nov. 21, 1989 |
| 4849431 |
Piperidine derivative and pharmaceutical composition |
Jul. 18, 1989 |
| RE32975 |
4-Pyridone-3-carboxylic acids and/or derivatives thereof |
Jul. 4, 1989 |
| 4838925 |
Heterocyclic acyl sulfonamides |
Jun. 13, 1989 |
| 4810705 |
Triazolo [3,4-b]pyridazines, process for their preparation and pharmaceutical compositions containing them |
Mar. 7, 1989 |
| 4806535 |
Imidazolylphenyl and 1,2,4-triazolylphenyl benzopyridazinone and pyridopyridazinone compounds and their use for increasing cardiatonic contractility |
Feb. 21, 1989 |
| 4786310 |
Benzothiazolylazolidines, and their production and use |
Nov. 22, 1988 |
| 4767765 |
N-substituted-N-[3-(1,2,4-triazolo-[4,3-b]pyridazin-6-yl )phenyl]alkanamides, carbamates and ureas |
Aug. 30, 1988 |
| 4757142 |
Process for preparing 6-amino-3-hydrazinopyridazine derivatives |
Jul. 12, 1988 |
| 4748105 |
Rapid bleach fixing of a silver halide color photographic light-sensitive material using an organic acid ferric complex |
May. 31, 1988 |
| 4746658 |
2-phenyl-imidazo-pyrazines, -pyridazines and -triazines |
May. 24, 1988 |
| 4743687 |
Pyridazo (1,2-a) (1,2) diazepine derivatives |
May. 10, 1988 |
| 4737184 |
Herbicidal sulfonamides |
Apr. 12, 1988 |
| 4723987 |
Herbicidal sulfonamides |
Feb. 9, 1988 |
| 4722929 |
Novel 2-phenyl-imidazoles and pharmaceutical compositions containing same |
Feb. 2, 1988 |
| 4698352 |
4-oxo-1,4-dihydronicotinic acid derivatives, salts thereof, and antibacterial agents containing the same |
Oct. 6, 1987 |
| 4690917 |
Imidazopyridayine derivatives having antiviral activity |
Sep. 1, 1987 |
| 4687853 |
Imidazo[1,5-A]pyridylmethanes |
Aug. 18, 1987 |
| 4670438 |
Imidazo[4,5-c]pyridazine-3-ones, imidazo[4,5-d]pyridazine-4-ones, imidazo[4,]pyrazin-5-ones, purin-2-ones, purin-6-ones, and purin-2,6-diones useful as hypotensive or cardiotonic agents |
Jun. 2, 1987 |
| 4656171 |
2-phenyl-imidazo-pyrazines, useful as cardiotonics |
Apr. 7, 1987 |
| 4654343 |
N-substituted-N[3-(1,2,4-triazolo[4,3-b]pyridazin-6-yl)phenyl]a lkanamides, carbamates and ureas |
Mar. 31, 1987 |
| 4654344 |
Pharmaceutical compositions for treating ulcers containing 2-aryltetraazaindenes |
Mar. 31, 1987 |
| 4647576 |
Trans-6-[2-(substitutedpyrrol-1-yl)alkyl]-pyran-2-one inhibitors of cholesterol synthesis |
Mar. 3, 1987 |
| 4628024 |
Silver halide color photographic light-sensitive material |
Dec. 9, 1986 |
| 4609731 |
Process for brominating ergot alkaloids |
Sep. 2, 1986 |
| 4599300 |
Direct positive silver halide photographic emulsions |
Jul. 8, 1986 |
| 4581449 |
Process of making ethyl{6-[ethyl-(2-hydroxypropyl)amino]-3-pyridazinyl}hydrazinecarboxylat e |
Apr. 8, 1986 |
| 4578464 |
6-Hydroxyalkylamino-8-methyl-1,2,4-triazolo-[4,3-b]pyridazine and related compounds |
Mar. 25, 1986 |
| 4575505 |
Pharmaceutical compositions containing 2-aryltetraazaindenes for treating ulcers or cardiac insufficiency or blood pressure abnormalities |
Mar. 11, 1986 |
| 4569934 |
Imidazo[1,2-b]pyridazines |
Feb. 11, 1986 |
| 4561880 |
1H[1,2,4]-Triazolo[1,2-a]pyridazine-1,3-diones useful as herbicides |
Dec. 31, 1985 |
| 4561881 |
Pollen suppressant comprising a pyridazolylamine |
Dec. 31, 1985 |
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