549 / | 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) {2} |
1 | DF | .~.~ Sulfur containing hetero ring (e.g., thiiranes, etc.) {9} |
29 | | .~.~.~ The hetero ring is five-membered {13} |
30 | DF | .~.~.~.~> Plural ring hetero atoms in the hetero ring {4} |
41 | DF | .~.~.~.~> Polycyclo ring system having the hetero ring as one of the cyclos {3} |
59 | DF | .~.~.~.~> Additional hetero ring containing {1} |
61 | DF | .~.~.~.~> Cyano bonded directly to the hetero ring |
62 | DF | .~.~.~.~> Chalcogen bonded directly to ring carbon of the hetero ring {5} |
68 | DF | .~.~.~.~> Nitrogen attached directly to the hetero ring by nonionic bonding {1} |
70 | DF | .~.~.~.~> Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring {3} |
74 | DF | .~.~.~.~> Nitrogen attached indirectly to the hetero ring by nonionic bonding {1} |
78 | DF | .~.~.~.~> Chalcogen attached indirectly to the hetero ring by nonionic bonding {1} |
80 | DF | .~.~.~.~> Unsaturated carbocyclic ring or acyclic carbon to carbon unsaturation containing |
81 | DF | .~.~.~.~> Halogen attached directly to the hetero ring by nonionic bonding {1} |
83 | DF | .~.~.~.~> The compound consists of the ring sulfur, carbon, and hydrogen {2} |
87 | DF | .~.~.~.~> Plural chalcogens double bonded directly to ring sulfur of the hetero ring |