US PATENT SUBCLASS 546 / 159
.~.~.~.~.~.~ Nitrogen, other than as nitro or nitroso, attached directly to the six membered hetero ring by nonionic bonding

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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}
159.~.~.~.~.~.~ Nitrogen, other than as nitro or nitroso, attached directly to the six membered hetero ring by nonionic bonding {2}
160  DF  .~.~.~.~.~.~.~> Unsaturated carbocyclic ring bonded directly to the nitrogen {1}
162  DF  .~.~.~.~.~.~.~> Nitrogen attached indirectly to the six-membered hetero ring through the directly attached nitrogen by nonionic bonding {1}

DEFINITION

Classification: 546/159

Nitrogen, other than as nitro or nitroso, attached directly to the six-membered hetero ring by nonionic bonding:

(under subclass 152) Compounds in which nitrogen, except as a member of the nitro (-NO2) or nitroso (-NO) group, is attached directly to the six-membered hetero ring of the quinoline ring system by nonionic bonding.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]