US PATENT SUBCLASS 514 / 86
.~.~.~.~ Nitrogen atoms occupy 1 and 3- positions

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}
75  DF  .~ Phosphorus containing other than solely as part of an inorganic ion in an addition salt DOAI {22}
79  DF  .~.~ Nitrogen containing hetero ring {6}
85  DF  .~.~.~ Hetero ring is six-membered consisting of two nitrogens and four carbons {1}
86.~.~.~.~ Nitrogen atoms occupy 1 and 3- positions {2}
87  DF  .~.~.~.~.~> PX- bonded directly to 1,3-diazine at 2- position (X is chalcogen)
88  DF  .~.~.~.~.~> Two or more PX- groups attached to the same 1,3-diazine (X is chalcogen)

DEFINITION

Classification: 514/86

Nitrogen atoms occupy 1 and 3- positions:

(under subclass 85) Subject matter wherein the nitrogen atoms are at the 1- and 3- position of the six member ring, i.e., 1, 3-diazines.