US PATENT SUBCLASS 548 / 452
.~.~.~.~ Bicyclo ring system having the five-membered hetero ring as one of the cyclos (e.g., octahydroindoles, etc.)


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

Internet Version by PATENTEC © 1999      Terms of Use



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.~.~.~.~ Bicyclo ring system having the five-membered hetero ring as one of the cyclos (e.g., octahydroindoles, etc.) {7}
453  DF  .~.~.~.~.~> Plural ring hetero atoms in the bicyclo ring system, or ring nitrogen is shared by the two cyclos of the bicyclo ring system
454  DF  .~.~.~.~.~> Additional polycyclo heterocyclic ring system attached directly or indirectly to the bicyclo ring system by nonionic bonding {3}
465  DF  .~.~.~.~.~> Additional hetero ring, attached directly or indirectly to the bicyclo ring system by nonionic bonding {2}
469  DF  .~.~.~.~.~> The bicyclo ring system consists of the five-membered hetero ring and a benzene ring (e.g., indole, etc.) {10}
512  DF  .~.~.~.~.~> Chalcogen bonded directly to ring carbon of the five-membered hetero ring (e.g., adrenochrome, etc.) {1}
515  DF  .~.~.~.~.~> The ring nitrogen is bonded directly to two ring carbons of the same cyclo which carbons are members of one cyclo only (e.g., cyclopenta(c)pyrroles, etc.)
516  DF  .~.~.~.~.~> Two double bonds between ring members of the five-membered hetero ring (e.g., 4,5,6,7-tetrahydroindoles, etc.)


DEFINITION

Classification: 548/452

(under subclass 416) Compounds wherein the polycyclo ring system consists of exactly two cyclos.