US PATENT SUBCLASS 548 / 515
.~.~.~.~.~ 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.)

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  DF  .~.~.~.~ Bicyclo ring system having the five-membered hetero ring as one of the cyclos (e.g., octahydroindoles, etc.) {7}
515.~.~.~.~.~ 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.)

DEFINITION

Classification: 548/515

(under subclass 452) Compounds wherein the ring nitrogen is bonded to two ring carbons of the same cyclo, which carbons are members of one cyclo only.

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