US PATENT SUBCLASS 514 / 335
.~.~.~.~ Chalcogen bonded directly to a ring carbon of the six-membered hetero ring

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
332  DF  .~.~.~ Plural six-membered hetero rings consisting of one nitrogen and five carbon atoms {3}
335.~.~.~.~ Chalcogen bonded directly to a ring carbon of the six-membered hetero ring

DEFINITION

Classification: 514/335

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

(under subclass 332) Subject matter wherein chalcogen (i.e., oxygen sulfur, selenium, tellurium) is bonded directly to a ring carbon of a pyridine or partially hydrogenated pyridine ring.