US PATENT SUBCLASS 540 / 583
.~.~.~.~.~.~ Having -C(=X)-, wherein X is chalcogen, bonded directly to ring nitrogen of the bicyclo ring system

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}
583.~.~.~.~.~.~ Having -C(=X)-, wherein X is chalcogen, bonded directly to ring nitrogen of the bicyclo ring system

DEFINITION

Classification: 540/583

(under subclass 582) Compounds in which- - wherein X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium), is bonded directly to the ring nitrogen of the bicyclo ring system.

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