US PATENT SUBCLASS 546 / 106
.~.~.~.~.~.~.~.~.~ The nitrogen is part of a substituent which contains additional nonionically bonded nitrogen

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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}
79  DF  .~.~.~.~ Tricyclo ring system having the six-membered hetero ring as one of the cyclos {7}
101  DF  .~.~.~.~.~ Each of the three cyclos is six-membered (e.g., benzoquinolines, etc.) {3}
102  DF  .~.~.~.~.~.~ Acridines (including hydrogenated) {2}
104  DF  .~.~.~.~.~.~.~ Nitrogen, other than as nitro or nitroso, attached directly or indirectly to the acridine ring system by nonionic bonding {2}
105  DF  .~.~.~.~.~.~.~.~ The nitrogen is bonded directly to ring carbon of the six-membered hetero ring {1}
106.~.~.~.~.~.~.~.~.~ The nitrogen is part of a substituent which contains additional nonionically bonded nitrogen

DEFINITION

Classification: 546/106

The nitrogen is part of a substituent which contains additional nonionically bonded nitrogen:

(under subclass 105) Compounds wherein the nitrogen is a member of a group containing additional nitrogen which is attached by nonionic bonding to the acridine ring system.

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