US PATENT SUBCLASS 514 / 272
.~.~.~.~.~ Nitrogen bonded directly to the 1,3-diazine at 2-position

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
183  DF  .~ Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., O,S,Se or Te) or nitrogen as the only ring hetero atoms DOAI {16}
247  DF  .~.~ Hetero ring is six-membered consisting of two nitrogens and four carbon atoms (e.g., pyridazines, etc.) {4}
256  DF  .~.~.~ 1,3-diazines (e.g., pyrimidines, etc.) {4}
269  DF  .~.~.~.~ Pyrimidines with chalcogen bonded directly to a ring carbon of said pyrimidine moiety {3}
272.~.~.~.~.~ Nitrogen bonded directly to the 1,3-diazine at 2-position {1}
273  DF  .~.~.~.~.~.~> The nitrogen is part of a hetero ring

DEFINITION

Classification: 514/272

Nitrogen bonded directly to the 1,3-diazine at 2-position:

(under subclass 269) Subject matter wherein a nitrogen is bonded directly to the 1,3-diazine at the 2- position, e.g., [figure] [caption], etc.