US PATENT SUBCLASS 548 / 192
.~.~.~.~.~.~ Nitrogen bonded directly to a -C(=X)- group, wherein X is chalcogen

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}
146  DF  .~.~.~ 1,3-thiazoles (including hydrogenated) {7}
190  DF  .~.~.~.~ Nitrogen attached directly to the thiazole ring by nonionic bonding {4}
191  DF  .~.~.~.~.~ Plural nitrogens attached directly to the thiazole ring by nonionic bonding {1}
192.~.~.~.~.~.~ Nitrogen bonded directly to a -C(=X)- group, wherein X is chalcogen

DEFINITION

Classification: 548/192

(under subclass 191) Compounds in which X nitrogen is bonded directly to a -C- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

(1) Note. Examples of compounds provided for herein are: [figure] [figure]