US PATENT SUBCLASS 548 / 468
.~.~.~.~.~.~.~ The additional hetero ring and the bicyclo ring system are attached directly to the same acyclic carbon or acyclic carbon chain

Current as of: June, 1999
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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}
400  DF  .~.~ Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) {20}
416  DF  .~.~.~ Polycyclo ring system having the five-membered hetero ring as one of the cyclos {5}
452  DF  .~.~.~.~ Bicyclo ring system having the five-membered hetero ring as one of the cyclos (e.g., octahydroindoles, etc.) {7}
465  DF  .~.~.~.~.~ Additional hetero ring, attached directly or indirectly to the bicyclo ring system by nonionic bonding {2}
467  DF  .~.~.~.~.~.~ Substituent on ring carbon of the bicyclo ring system contains the additional hetero ring {1}
468.~.~.~.~.~.~.~ The additional hetero ring and the bicyclo ring system are attached directly to the same acyclic carbon or acyclic carbon chain

DEFINITION

Classification: 548/468

(under subclass 467) Compounds wherein the bicyclo ring system and the additional hetero ring are attached directly to the same acyclic carbon or acyclic carbon chain.

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