US PATENT SUBCLASS 548 / 578
.~.~.~ Benzene ring in a substituent attached to the ring nitrogen of the five membered hetero ring by nonionic bonding

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548 /   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) {4}
400  DF  .~.~ Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) {20}
578.~.~.~ Benzene ring in a substituent attached to the ring nitrogen of the five membered hetero ring by nonionic bonding

DEFINITION

Classification: 548/578

(under subclass 400) Compounds wherein a benzene ring is part of a substituent attached to the ring nitrogen of the five-membered hetero ring by nonionic bonding.

(1) Note. An example of a compound provided for herein is: [figure]