US PATENT SUBCLASS 544 / 139-- .~.~.~.~.~.~.~.~ 1,3-Diazole ring (including hydrogenated)

US PATENT SUBCLASS 544 / 139
.~.~.~.~.~.~.~.~ 1,3-Diazole ring (including hydrogenated)

Current as of: June, 1999
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544 /	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 having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) {6}
63	DF	.~.~.~ Six-membered hetero ring consists of oxygen, nitrogen and carbon (e.g., 1,2-oxazines, etc) {8}
98	DF	.~.~.~.~ 1,4-Oxazines {2}
106	DF	.~.~.~.~.~ Morpholines (i.e., fully hydrogenated 1,4-oxazines {10}
111	DF	.~.~.~.~.~.~ Additional nitrogen containing hetero ring (e.g., thiazetidine, etc.) {5}
132	DF	.~.~.~.~.~.~.~ Five-membered hetero ring having two or more ring hetero atoms of which at least one is nitrogen {4}
139		.~.~.~.~.~.~.~.~ 1,3-Diazole ring (including hydrogenated)

DEFINITION

Classification: 544/139

(under subclass 132) Compounds in which the five-membered hetero ring has ring nitrogens in the 1- and 3-positions and ring carbons in the remaining three positions.