US PATENT SUBCLASS 514 / 345
.~.~.~ Chalcogen bonded directly to ring carbon of the six-membered hetero ring

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}
277  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbon atoms {11}
345.~.~.~ Chalcogen bonded directly to ring carbon of the six-membered hetero ring {6}
346  DF  .~.~.~.~> Chalcogen and acyclic nitrogen bonded directly to the same carbon
347  DF  .~.~.~.~> Chalcogen bonded directly to chalcogen
348  DF  .~.~.~.~> Chalcogens bonded directly to at least two ring carbons of the six-membered hetero ring
349  DF  .~.~.~.~> Nitrogen attached directly to the six-membered hetero ring by nonionic bonding
350  DF  .~.~.~.~> C=O bonded directly to the six-membered hetero ring
351  DF  .~.~.~.~> Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding

DEFINITION

Classification: 514/345

Chalcogen bonded directly to ring carbon of the six-membered hetero ring:

(under subclass 277) Subject matter wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly to a ring carbon of the six-membered hetero ring.