| 546 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
|
| * | 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 | DF | .~.~.~.~ Additional ring containing {9} |
| 195 | DF | .~.~.~.~.~ The additional ring is one of the cyclos in a polycyclo ring system {3} |
| 196 | DF | .~.~.~.~.~.~ Hetero ring in the polycyclo ring system {3} |
| 197 | DF | .~.~.~.~.~.~.~ Plural ring hetero atoms in the polycyclo ring system {1} |
| 198 |  | .~.~.~.~.~.~.~.~ Ring nitrogen in the polycyclo ring system {1} |
| 199 | DF | .~.~.~.~.~.~.~>.~.~ Plural ring nitrogens in the polycyclo ring system |