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} |
26 | DF | .~.~.~ Polycyclo ring system having the six-membered hetero ring as one of the cyclos {9} |
42 | DF | .~.~.~.~ Pentacyclo ring system having the six-membered hetero ring as one of the cyclos {3} |
47 | DF | .~.~.~.~.~ Plural ring hetero atoms in the pentacyclo ring system {2} |
49 | DF | .~.~.~.~.~.~ Two ring nitrogens in the pentacyclo ring system (e.g., quinacridones, etc.) {2} |
50 | DF | .~.~.~.~.~.~.~ Ring nitrogen is shared by two of the cyclos (e.g., yohimbanes, etc.) {2} |
53 | DF | .~.~.~.~.~.~.~.~ Having -C(=X)-, wherein X is chalcogen, bonded directly to ring carbon of the pentacyclo ring system and also bonded directly to chalcogen or nitrogen {1} |
54 | DF | .~.~.~.~.~.~.~.~.~ Plural chalcogens bonded directly to the same cyclo as is the -(C=X)- group {1} |
55 | | .~.~.~.~.~.~.~.~.~.~ Trialkoxybenzoyl bonded directly to at least one of the chalcogens (e.g., reserpine, etc.) |