| 546 / | 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) {1} |
| 1 | DF | .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24} |
| 184 | DF | .~.~.~ Piperidines {8} |
| 192 |  | .~.~.~.~ Additional ring containing {9} |
| 193 | DF | .~.~.~.~.~> Pyridine ring or partially hydrogenated pyridine ring {1} |
| 195 | DF | .~.~.~.~.~> The additional ring is one of the cyclos in a polycyclo ring system {3} |
| 207 | DF | .~.~.~.~.~> The additional ring is a hetero ring {3} |
| 215 | DF | .~.~.~.~.~> Cyano bonded directly to the piperidine ring |
| 216 | DF | .~.~.~.~.~> Chalcogen bonded directly to ring carbon of the piperidine ring {3} |
| 223 | DF | .~.~.~.~.~> Nitrogen attached directly to the piperidine ring by nonionic bonding {1} |
| 225 | DF | .~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, bonded directly to the piperidine ring {2} |
| 229 | DF | .~.~.~.~.~> Nitrogen attached indirectly to the piperidine ring by nonionic bonding {3} |
| 236 | DF | .~.~.~.~.~> Chalcogen attached indirectly to the piperidine ring by nonionic bonding {2} |