US PATENT SUBCLASS 548 / 330.1
.~.~.~.~.~.~ Chalcogen, not part of a nitro group, attached indirectly to the diazole ring by acyclic nonionic bonding


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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}
326.5  DF  .~.~.~.~ Nitrogen attached directly to the diazole ring by nonionic bonding {3}
327.1  DF  .~.~.~.~.~ The nitrogen is part of a nitro group (i.e., -NO ), (e.g., 5-nitroimidazole, etc.) {5}
330.1.~.~.~.~.~.~ Chalcogen, not part of a nitro group, attached indirectly to the diazole ring by acyclic nonionic bonding {1}
330.5  DF  .~.~.~.~.~.~.~> The chalcogen is sulfur


DEFINITION

Classification: 548/330.1

(under subclass 327.1) Compounds wherein an additional chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), which is not part of the nitro group, is attached indirectly to the diazole ring by acyclic nonionic bonding.

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