US PATENT SUBCLASS 544 / 297
.~.~.~.~.~ Nitrogen attached directly at 2-position by nonionic bonding and sulfur bonded directly to the nitrogen

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
224  DF  .~.~.~ The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.) {9}
242  DF  .~.~.~.~ 1,3-diazines {10}
297.~.~.~.~.~ Nitrogen attached directly at 2-position by nonionic bonding and sulfur bonded directly to the nitrogen

DEFINITION

Classification: 544/297

Nitrogen attached directly at 2-position by nonionic bonding and sulfur bonded directly to the nitrogen:

(under subclass 242) Compounds which include nitrogen attached directly at the 2-position of the six-membered hetero ring by nonionic bonding and sulfur bonded directly to the nitrogen which is at the 2-position.

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