US PATENT SUBCLASS 546 / 220
.~.~.~.~.~.~.~ Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the piperidine ring by nonionic bonding

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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  DF  .~.~.~.~.~.~ Plural chalcogens bonded directly to ring carbons of the piperidine ring {1}
220.~.~.~.~.~.~.~ Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the piperidine ring by nonionic bonding

DEFINITION

Classification: 546/220

Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the piperidine ring by nonionic bonding:

(under subclass 219) Compounds wherein a group, in which X is chalcogen (i.e., oxygen sulfur, selenium, or tellurium), is attached directly, or indirectly to the piperidine ring by nonionic bonding.

(1) Note. An example of a compound provided for here is: [figure]