US PATENT SUBCLASS 546 / 153
.~.~.~.~.~.~ Chalcogen attached directly to the six-membered hetero ring by nonionic bonding

Current as of: June, 1999
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546 /   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 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}
152  DF  .~.~.~.~.~ Quinolines (including hydrogenated) {14}
153.~.~.~.~.~.~ Chalcogen attached directly to the six-membered hetero ring by nonionic bonding {4}
154  DF  .~.~.~.~.~.~.~> Polycyclo-carbocyclic ring system bonded directly to the six-membered hetero ring (e.g., quinophthalones, etc.)
155  DF  .~.~.~.~.~.~.~> Plural chalcogens attached directly to the six-membered hetero ring by nonionic bonding
156  DF  .~.~.~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, bonded directly to the six-membered hetero ring
157  DF  .~.~.~.~.~.~.~> Chalcogen attached directly at 2-position by nonionic bonding {1}

DEFINITION

Classification: 546/153

Chalcogen attached directly to the six-membered hetero ring by nonionic bonding:

(under subclass 152) Compounds in which chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached directly to the six-membered hetero ring of the quinoline ring system by nonionic bonding.