US PATENT SUBCLASS 514 / 392
.~.~.~.~.~ Divalent chalcogen or acyclic nitrogen double bonded at 2-position, or tautomeric equivalent

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}
359  DF  .~.~ Five-membered hetero ring containing at least one nitrogen ring atom (e.g., 1,2,3-triazoles, etc.) {11}
385  DF  .~.~.~ 1,3-diazoles {4}
386  DF  .~.~.~.~ Divalent chalcogen or acyclic nitrogen double bonded directly to ring carbon of the diazole ring, or tautomeric equivalent {3}
392.~.~.~.~.~ Divalent chalcogen or acyclic nitrogen double bonded at 2-position, or tautomeric equivalent

DEFINITION

Classification: 514/392

Divalent chalcogen or acyclic nitrogen double bonded directly at 2-position, or tautomeric equivalent:

(under subclass 386) Subject matter wherein the ring carbon between the two ring nitrogens of the 1,3-diazole ring is bonded directly by a double bond to divalent chalcogen or acyclic nitrogen, or to a group which may tautomerize thereto (e.g., hydroxyl, sulfhydryl, acyclic amino, etc.).