| 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} |
| 112 | DF | .~.~.~.~ Bicyclo ring system having the six-membered hetero ring as one of the cyclos {7} |
| 139 |  | .~.~.~.~.~ Isoquinolines (including hydrogenated) {10} |
| 140 | DF | .~.~.~.~.~.~> Plural isoquinoline ring systems attached directly or indirectly to each other by nonionic bonding |
| 141 | DF | .~.~.~.~.~.~> Chalcogen attached directly to the six-membered hetero ring by nonionic bonding {1} |
| 143 | DF | .~.~.~.~.~.~> Nitrogen, other than as nitro or nitroso, attached directly to the isoquinoline ring system by nonionic bonding |
| 144 | DF | .~.~.~.~.~.~> Unsaturated ring attached directly to the six-membered hetero ring by nonionic bonding |
| 145 | DF | .~.~.~.~.~.~> Acyclic nitrogen double or triple bonded to carbon which is attached directly or indirectly to the isoquinoline ring system by nonionic bonding |
| 146 | DF | .~.~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the isoquinoline ring system by nonionic bonding {1} |
| 148 | DF | .~.~.~.~.~.~> Unsaturated hetero ring attached indirectly to the isoquinoline ring system by nonionic bonding |
| 149 | DF | .~.~.~.~.~.~> Unsaturated carbocyclic ring attached indirectly to the six-membered hetero ring through an acyclic hydrocarbon chain |
| 150 | DF | .~.~.~.~.~.~> Single bond between 3,4-positions |
| 151 | DF | .~.~.~.~.~.~> N-alkyl or N-alkenyl isoquinoliniums which are otherwise unsubstituted or alkyl or alkenyl substituted only |