| 548 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {1} |
| * | DD | .~ 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) {4} |
| 100 | DF | .~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) {18} |
| 300.1 | DF | .~.~.~ 1,3-diazoles (including hydrogenated) {9} |
| 301.7 | DF | .~.~.~.~ Polycyclo ring system having the diazole ring as one the cyclos {2} |
| 302.7 | DF | .~.~.~.~.~ Bicyclo ring system having the diazole ring as one of the cyclos {2} |
| 304.4 |  | .~.~.~.~.~.~ The other ring is a benzene ring {8} |
| 304.7 | DF | .~.~.~.~.~.~.~> Additional hetero ring attached directly or indirectly to the diazole ring by nonionic bonding (e.g., methyl( 5-[2-(2-thienyl)-1,3-dioxolan -2-yl]-1H-benzimidazol-2-yl) carbamate, etc.) {2} |
| 306.4 | DF | .~.~.~.~.~.~.~> Chalcogen bonded directly to ring carbon of the diazole ring {2} |
| 307.4 | DF | .~.~.~.~.~.~.~> Nitrogen attached directly to the diazole ring by nonionic bonding {3} |
| 309.4 | DF | .~.~.~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, bonded directly to the diazole ring |
| 309.7 | DF | .~.~.~.~.~.~.~> Nitrogen attached indirectly to the diazole ring by acyclic nonionic bonding |
| 310.1 | DF | .~.~.~.~.~.~.~> Chalcogen attached indirectly to the diazole ring by acyclic nonionic bonding |
| 310.4 | DF | .~.~.~.~.~.~.~> Halogen attached directly or indirectly to the diazole ring by acyclic nonionic bonding |
| 310.7 | DF | .~.~.~.~.~.~.~> Benzene ring bonded directly at the 2- position of the diazole ring |