The Six-membered Hetero Ring Consists Of Two Nitrogens And Four Carbons (e.g., 1,2-diazines, Etc.) Patents (Class 544/224)
Phosphorus attached directly or indirectly to a 1,2-diazine ring by nonionic bonding (Class 544/232)
- Phosphorus attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/243)
- Polycyclo ring system having the diazine ring as one of the cyclos (Class 544/245)
- Tetracyclo ring system having the diazine ring as one of the cyclos (Class 544/246)
- Tricyclo ring system having the diazine ring as one of the cyclos (Class 544/249)
- Bicyclo ring system having the diazine ring as one of the cyclos (Class 544/253)
- At least five ring hetero atoms in the bicyclo ring system (Class 544/254)
- Four ring hetero atoms in the bicyclo ring system (Class 544/255)
- Four ring nitrogens in the bicyclo ring system (Class 544/256)
- Pteridines (including hydrogenated) (Class 544/257)
- The other cyclo in the bicyclo ring system is five-membered (Class 544/262)
- Ring nitrogen is shared by two cyclos (Class 544/263)
- Purines (including hydrogenated) (Class 544/264)
- Chalcogen bonded directly to ring carbon of the purine ring system (Class 544/265)
- At 2-,6-, and 8-positions (Class 544/266)
- At 2- and 6-positions (e.g., theophyllines, etc.) (Class 544/267)
- Additional polycyclo ring system, which is not another purine, having a hetero ring as one of the cyclos (Class 544/268)
- Additional hetero ring which is unsaturated and is not one of the cyclos of a purine ring system (Class 544/269)
- Having -C(=X)-, wherein X is chalcogen attached directly or indirectly to the purine ring system by nonionic bonding or halogen bonded directly at 8-position (e.g., theophylline acetate, 8-chlorotheophylline, etc.) (Class 544/271)
- Nitrogen attached directly or indirectly to the purine ring system by nonionc bonding (Class 544/272)
- Positions other than 2- and 6- are unsubstituted or hydrocarbyl or hydro- carboyl substituted only (e.g., theophylline, etc.) (Class 544/273)
- Caffeine per se, theobromine per se, or salt thereof (Class 544/274)
- Nitrogen attached directly or indirectly to the purine ring system by nonionic bonding (Class 544/276)
- Nitrogen attached directly or indirectly to the purine ring system by nonionic bonding (Class 544/277)
- Three ring hetero atoms in the bicyclo ring system (Class 544/278)
- Ring nitrogen is shared by two cyclos (Class 544/282)
- The other cyclo in the bicyclo ring system is a benzene ring (e.g., quinazoline, etc.) (Class 544/283)
- Additional nitrogen containing unsaturated hetero ring (e.g., thiazole, etc.) (Class 544/284)
- Chalcogen bonded directly at 2- and 4-positions (Class 544/285)
- Chalcogen bonded directly at 2-position (Class 544/286)
- Chalcogen bonded directly at 4-position (Class 544/287)
- Nitrogen bonded directly at 2- and 4-positions (Class 544/291)
- Nitrogen bonded directly at 2-position (Class 544/292)
- Nitrogen bonded directly at 4-position (Class 544/293)
- Polycyclo-carbocyclic ring system having at least three cyclos (Class 544/294)
- Plural diazine rings (Class 544/295)
- Nitrogen attached directly at 2-position by nonionic bonding and sulfur bonded directly to the nitrogen (Class 544/297)
- Chalcogen bonded directly to diazine ring carbon (Class 544/298)
- At 2-, 4-, and 6-positions (e.g., barbituric acid, etc.) (Class 544/299)
- Additional hetero ring which is unsaturated (Class 544/300)
- Nitrogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/301)
- Additional chalcogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/302)
- Halogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/303)
- Alicyclic ring attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/304)
- Phenyl bonded directly at 5-position (Class 544/305)
- Acyclic ethylenic or acetylenic unsaturation containing (Class 544/306)
- Plural alkyl groups bonded directly at 5-position (Class 544/307)
- At 2-position and at 4- or 6-position (Class 544/309)
- Additional hetero ring which is unsaturated (Class 544/310)
- Nitrogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/311)
- Halogen attached directly to the diazine ring by nonionic bonding (Class 544/313)
- Additional chalcogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/314)
- At 2-position (Class 544/315)
- At 4- or 6-position (Class 544/319)
- Nitrogen attached directly to diazine ring by nonionic bonding (Class 544/322)
- Additional hetero ring which is unsaturated (Class 544/333)
- Halogen attached directly to the diazine ring by nonionic bonding (Class 544/334)
- Chalcogen attached indirectly to the diazine ring by nonionic bonding (Class 544/335)
- Phosphorus attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/337)
- Polycyclo ring system having the diazine ring as one of the cyclos (Class 544/338)
- Heptacyclo ring system having the diazine ring as one of the cyclos (e.g., indanthrones, etc.) (Class 544/339)
- Pentacyclo ring system having the diazine ring as one of the cyclos (Class 544/342)
- Tetracyclo ring system having the diazine ring as one of the cyclos (e.g., benzophenazines, etc.) (Class 544/343)
- Tricyclo ring system having the diazine ring as one of the cyclos (Class 544/344)
- Bicyclo ring system having the diazine ring as one of the cyclos (Class 544/349)
- Plural diazine rings (Class 544/357)
- Piperazines (i.e., fully hydrogenated 1,4-diazines) (Class 544/358)
- Additional hetero ring containing (Class 544/359)
- Six-membered ring consisting of one nitrogen and five carbons (e.g., pyridine, etc.) (Class 544/360)
- The additional six-membered hetero ring is one of the cyclos in a polycyclo ring system (Class 544/361)
- At least three hetero rings containing (Class 544/364)
- Having -C(=X)-, wherein X is chalcogen, bonded directly to ring carbon of the additional six-membered hetero ring (e.g., nicotinic acid, etc.) (Class 544/365)
- Five-membered hetero ring having two or more ring hetero atoms of which at least one is nitrogen (Class 544/366)
- Five-membered hetero ring consisting of one nitrogen and four carbons (Class 544/372)
- Ring chalcogen in the additional hetero ring (Class 544/374)
- Polycyclo-carbocyclic ring system having at least three cyclos (Class 544/380)
- Nitrogen attached directly to the piperazine ring by nonionic bonding (Class 544/382)
- Chalcogen attached directly to piperazine ring nitrogen by nonionic bonding (Class 544/383)
- Chalcogen bonded directly to piperazine ring carbon (Class 544/384)
- Having -C(=X)-, wherein X is chalcogen, bonded directly to the piperazine ring (Class 544/386)
- Plural -C(=X)- groups bonded directly to the piperazine ring (Class 544/387)
- The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens (Class 544/389)
- Halogen or acyclic nitrogen bonded directly to the -C(=X)- group (Class 544/390)
- Carbocyclic ring containing (Class 544/391)
- Phenyl or naphthyl bonded directly to ring nitrogen of the piperazine ring (Class 544/392)
- Acyclic nitrogen bonded directly to a -C(=X)- group, wherein X is chalcogen (Class 544/393)
- The other ring nitrogen has a substituent which includes chalcogen single bonded to acyclic carbon (Class 544/394)
- The other ring nitrogen is unsubstituted or alkyl substituted only, or salt thereof (Class 544/395)
- Plural carbocyclic rings bonded directly to the same acyclic carbon (Class 544/396)
- Chalcogen attached indirectly to the piperazine ring by nonionic bonding (Class 544/398)
- Nitrogen attached indirectly to the piperazine ring by nonionic bonding (Class 544/402)
- Carbocyclic ring containing (Class 544/403)
- N-hydrocarbyl piperazines (Class 544/404)
- Additional hetero ring which is unsaturated (Class 544/405)
- Having -C(=X)-, wherein X is chalcogen, bonded directly to the diazine ring (Class 544/406)
- Chalcogen bonded directly to diazine ring carbon (Class 544/408)
- Halogen attached directly to the diazine ring by nonionic bonding (Class 544/409)
- Unsubstituted or hydrocarbyl substituted only, or salt thereof (Class 544/410)