US PATENT SUBCLASS 549 / 462
.~.~.~.~.~ Bicyclo ring system having the hetero ring as one of the cyclos


Current as of: June, 1999
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549 /   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) {2}
200  DF  .~.~ Oxygen containing hetero ring (e.g., dioxirane, etc.) {16}
429  DF  .~.~.~ The hetero ring is five-membered {14}
456  DF  .~.~.~.~ Polycyclo ring system having the hetero ring as one of the cyclos {3}
462.~.~.~.~.~ Bicyclo ring system having the hetero ring as one of the cyclos {9}
463  DF  .~.~.~.~.~.~> The two cyclos share at least three ring members (i.e., bridged)
464  DF  .~.~.~.~.~.~> Plural ring oxygens in the bicyclo ring system
465  DF  .~.~.~.~.~.~> The bicyclo ring system consists of two five-membered cyclos
466  DF  .~.~.~.~.~.~> Acyclic chalcogen bonded directly to the hetero ring
467  DF  .~.~.~.~.~.~> Nitrogen attached directly or indirectly to the hetero ring by acyclic nonionic bonding
468  DF  .~.~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
469  DF  .~.~.~.~.~.~> Benzene ring bonded directly to the hetero ring
470  DF  .~.~.~.~.~.~> Chalcogen of -C(=X)X-, wherein the X's are the same or diverse chalcogens, bonded directly to the carbocyclic ring of the bicyclo ring system
471  DF  .~.~.~.~.~.~> Plural double bonds between ring members of the hetero ring


DEFINITION

Classification: 549/462

(under subclass 456) Compounds wherein the polycyclo ring system consists of exactly two rings.

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