US PATENT SUBCLASS 546 / 86
.~.~.~.~.~.~.~.~.~ Chalcogen bonded directly to ring carbon of the tricyclo ring system

Current as of: June, 1999
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546 /   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) {1}
1  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
26  DF  .~.~.~ Polycyclo ring system having the six-membered hetero ring as one of the cyclos {9}
79  DF  .~.~.~.~ Tricyclo ring system having the six-membered hetero ring as one of the cyclos {7}
80  DF  .~.~.~.~.~ Plural ring hetero atoms in the tricyclo ring system {2}
81  DF  .~.~.~.~.~.~ Plural ring nitrogens in the tricyclo ring system {3}
84  DF  .~.~.~.~.~.~.~ One of the cyclos is five-membered {1}
85  DF  .~.~.~.~.~.~.~.~ The six-membered hetero ring shares ring members with the five-membered cyclo only (e.g., pyrido-indoles, etc.) {2}
86.~.~.~.~.~.~.~.~.~ Chalcogen bonded directly to ring carbon of the tricyclo ring system

DEFINITION

Classification: 546/86

Chalcogen bonded directly to ring carbon of the tricyclo ring system:

(under subclass 85) Compounds in which chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is bonded directly to ring carbon of the tricyclo ring system.

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