US PATENT SUBCLASS 546 / 226
.~.~.~.~.~.~ At 1-position

Current as of: June, 1999
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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}
225  DF  .~.~.~.~.~ Having -C(=X)-, wherein X is chalcogen, bonded directly to the piperidine ring {2}
226.~.~.~.~.~.~ At 1-position

DEFINITION

Classification: 546/226

At 1-position:

(under subclass 225) Compounds wherein the group is bonded

directly to the piperidine ring at the 1-position, i.e., to the nitrogen atom of the ring.

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