US PATENT SUBCLASS 514 / 390
.~.~.~.~.~.~ Chalcogen or nitrogen bonded directly at 1-, 3-, or 5-position by nonionic bonding

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}
389  DF  .~.~.~.~.~ Divalent chalcogen or acyclic nitrogen double bonded directly at both 2- and 4- positions, or tautomeric equivalent (e.g., hydantoin, etc.) {2}
390.~.~.~.~.~.~ Chalcogen or nitrogen bonded directly at 1-, 3-, or 5-position by nonionic bonding

DEFINITION

Classification: 514/390

Chalcogen or nitrogen bonded directly at 1-, 3-, or 5-position by nonionic bonding:

(under subclass 389) Subject matter wherein chalcogen or nitrogen is bonded directly to a ring nitrogen, or to the ring carbon at 5-position of the 1,3-diazole ring by nonionic bonding.