US PATENT SUBCLASS 540 / 582
.~.~.~.~.~ Bicyclo ring system which contains the hetero ring as one of the cyclos (e.g., 3-azabicyclo-(3.2.2)nonanes, etc.)


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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.~.~.~.~.~ Bicyclo ring system which contains the hetero ring as one of the cyclos (e.g., 3-azabicyclo-(3.2.2)nonanes, etc.) {3}
583  DF  .~.~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, bonded directly to ring nitrogen of the bicyclo ring system
584  DF  .~.~.~.~.~.~> Chalcogen or nitrogen attached directly to ring nitrogen of the bicyclo ring system by nonionic bonding
585  DF  .~.~.~.~.~.~> Chalcogen or nitrogen attached indirectly to ring nitrogen of the bicyclo ring system by acyclic nonionic bonding


DEFINITION

Classification: 540/582

(under subclass 581) Compounds wherein the polycylo ring system consists of exactly two rings.

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