544 / | 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 having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) {6} |
224 | DF | .~.~.~ The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.) {9} |
336 | DF | .~.~.~.~ 1,4-diazines {9} |
358 | DF | .~.~.~.~.~ Piperazines (i.e., fully hydrogenated 1,4-diazines) {12} |
359 | DF | .~.~.~.~.~.~ Additional hetero ring containing {4} |
360 | DF | .~.~.~.~.~.~.~ Six-membered ring consisting of one nitrogen and five carbons (e.g., pyridine, etc.) {3} |
361 | DF | .~.~.~.~.~.~.~.~ The additional six-membered hetero ring is one of the cyclos in a polycyclo ring system {1} |
362 | DF | .~.~.~.~.~.~.~.~.~ The additional six-membered hetero ring is one of the cyclos in a bicyclo ring system {1} |
363 | | .~.~.~.~.~.~.~.~.~.~ Quinoline or isoquinoline (including hydrogenated) |