US PATENT SUBCLASS 548 / 266.4
.~.~.~.~.~ The additional unsaturated hetero ring is one of the cyclos of a polycyclo ring system (except alkylenedioxyphenyl)

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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}
100  DF  .~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) {18}
262.2  DF  .~.~.~ 1,2,4-triazoles (including hydrogenated) {13}
266.2  DF  .~.~.~.~ Additional unsaturated hetero ring attached directly or indirectly to the triazole ring by nonionic bonding {2}
266.4.~.~.~.~.~ The additional unsaturated hetero ring is one of the cyclos of a polycyclo ring system (except alkylenedioxyphenyl)

DEFINITION

Classification: 548/266.4

(under subclass 266.2) Compounds wherein a polycyclo ring system has the additional unsaturated hetero ring as one of its cyclos, except alkylenedioxyphenyl.

(1) Note. Compounds wherein the sole additional hetero ring present is alkylenedioxyphenyl are excluded from subclasses 266.2 and 266.4.

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