US PATENT SUBCLASS 540 / 585
.~.~.~.~.~.~ Chalcogen or nitrogen attached indirectly to ring nitrogen of the bicyclo ring system by acyclic nonionic bonding

Current as of: June, 1999
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540 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS {6}
484  DF  .~.~ The hetero ring contains seven members including nitrogen and carbon {14}
576  DF  .~.~.~ Polycyclo ring system which contains the hetero ring as one of the cyclos {4}
581  DF  .~.~.~.~ Two of the cyclos share at least three ring members or a ring carbon is shared by three of the cyclos (e.g., bridged, peri-fused, etc.) {1}
582  DF  .~.~.~.~.~ Bicyclo ring system which contains the hetero ring as one of the cyclos (e.g., 3-azabicyclo-(3.2.2)nonanes, etc.) {3}
585.~.~.~.~.~.~ Chalcogen or nitrogen attached indirectly to ring nitrogen of the bicyclo ring system by acyclic nonionic bonding

DEFINITION

Classification: 540/585

(under subclass 582) Compounds wherein nitrogen or chalcogen

(i.e., oxygen, sulfur, selenium or tellurium) is attached indirectly to the ring nitrogen of the bicyclo ring system by acyclic nonionic bonding.

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