| 548 / | 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) {4} |
| 400 | DF | .~.~ Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) {20} |
| 416 | DF | .~.~.~ Polycyclo ring system having the five-membered hetero ring as one of the cyclos {5} |
| 452 | DF | .~.~.~.~ Bicyclo ring system having the five-membered hetero ring as one of the cyclos (e.g., octahydroindoles, etc.) {7} |
| 469 |  | .~.~.~.~.~ The bicyclo ring system consists of the five-membered hetero ring and a benzene ring (e.g., indole, etc.) {10} |
| 470 | DF | .~.~.~.~.~.~> The ring nitrogen is bonded directly to two ring carbons of the same cyclo which carbons are members of one cyclo only (i.e., isoindoles or isoindolenines) {3} |
| 483 | DF | .~.~.~.~.~.~> Nitrogen attached directly to the five-membered hetero ring by nonionic bonding (e.g., 2-amino indoles, etc.) |
| 484 | DF | .~.~.~.~.~.~> Chalcogen bonded directly to ring carbon of the five-membered hetero ring (e.g., 3-indolols, etc.) {4} |
| 490 | DF | .~.~.~.~.~.~> The five-membered hetero ring contains one double bond only (i.e., indolines) {1} |
| 492 | DF | .~.~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, bonded directly to ring carbon of the five-membered hetero ring (e.g., indole-2-carboxylic acids, etc.) {1} |
| 494 | DF | .~.~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, attached indirectly to ring carbon of the five-membered hetero ring by an acyclic carbon or acyclic carbon chain (e.g., indole-3-acetic acid, etc.) {3} |
| 503 | DF | .~.~.~.~.~.~> Nitrogen attached indirectly to ring carbon of the bicyclo ring system by acyclic nonionic bonding {1} |
| 508 | DF | .~.~.~.~.~.~> Processes of forming the bicyclo ring system by cyclization (e.g., forming indole from o-ethyl aniline, etc.) |
| 509 | DF | .~.~.~.~.~.~> Chalcogen attached indirectly to the bicyclo ring system by acyclic nonionic bonding {1} |
| 511 | DF | .~.~.~.~.~.~> Benzene ring bonded directly or attached indirectly by an acyclic carbon or an acyclic carbon chain to ring carbon of the five-membered hetero ring |