US PATENT SUBCLASS 546 / 218
.~.~.~.~.~.~.~ The chalcogen, X, is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens

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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}
217  DF  .~.~.~.~.~.~ Chalcogen and a carbocyclic ring bonded directly at 4-position {1}
218.~.~.~.~.~.~.~ The chalcogen, X, is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens

DEFINITION

Classification: 546/218

The chalcogen, X, is part of a -C(=X)X-group, wherein the X's are the same or diverse chalcogens:

(under subclass 217) Compounds in which the chalcogen, X, is part of a group, wherein the X's are the same or diverse chalcogens (i.e., oxygen, sulfur, selenium, or tellurium).

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