US PATENT SUBCLASS 548 / 301.7
.~.~.~.~ Polycyclo ring system having the diazole ring as one the cyclos


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}
100  DF  .~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) {18}
300.1  DF  .~.~.~ 1,3-diazoles (including hydrogenated) {9}
301.7.~.~.~.~ Polycyclo ring system having the diazole ring as one the cyclos {2}
302.1  DF  .~.~.~.~.~> Tricyclo ring system having the diazole ring as one the cyclos {1}
302.7  DF  .~.~.~.~.~> Bicyclo ring system having the diazole ring as one of the cyclos {2}


DEFINITION

Classification: 548/301.7

(under subclass 300.1) Compounds wherein the 1,3-diazole ring is a cyclo in a polycyclo ring system.

(1) Note. This subclass contains, for example: [figure]