US PATENT SUBCLASS 546 / 219
.~.~.~.~.~.~ Plural chalcogens bonded directly to ring carbons of the piperidine ring

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546 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
*  DD  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) {1}
1  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
184  DF  .~.~.~ Piperidines {8}
192  DF  .~.~.~.~ Additional ring containing {9}
216  DF  .~.~.~.~.~ Chalcogen bonded directly to ring carbon of the piperidine ring {3}
219.~.~.~.~.~.~ Plural chalcogens bonded directly to ring carbons of the piperidine ring {1}
220  DF  .~.~.~.~.~.~.~> Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the piperidine ring by nonionic bonding

DEFINITION

Classification: 546/219

Plural chalcogens bonded directly to ring carbons of the

piperidine ring:

(under subclass 216) Compounds in which at least two chalcogens (i.e., oxygen, sulfur, selenium, or tellurium) are bonded directly to ring carbons of the piperidine ring.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS:

296, for tautomers of chalcogen double bonded directly to piperidine (i.e., chalcogen attached directly to pyridine or partially hydrogenated pyridine), e.g., [figure]