US PATENT SUBCLASS 536 / 28.3
.~.~.~.~.~ The N-hetero ring is a triazine ring, including hydrogenated (e.g., 6-azauridine, etc.)

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536 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1.11  DF  .~ Carbohydrates or derivatives {15}
18.7  DF  .~.~ Nitrogen containing {13}
22.1  DF  .~.~.~ N-glycosides, polymers thereof, metal derivatives (e.g., nucleic acids, oligonucleotides, etc.) {12}
28.1  DF  .~.~.~.~ N-glycosides wherein the N is part of a six-membered hetero ring (e.g., diazines, etc.) {3}
28.3.~.~.~.~.~ The N-hetero ring is a triazine ring, including hydrogenated (e.g., 6-azauridine, etc.)

DEFINITION

Classification: 536/28.3

The N-hetero ring is a triazine ring, including hydrogenated (e.g., 6-azauridine, etc.):

(under subclass 28.1) Compounds wherein the N-hetero ring has exactly three nitrogens and three carbons.

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