US PATENT SUBCLASS 546 / 208
.~.~.~.~.~.~ Ring nitrogen in the additional hetero ring

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}
207  DF  .~.~.~.~.~ The additional ring is a hetero ring {3}
208.~.~.~.~.~.~ Ring nitrogen in the additional hetero ring {2}
209  DF  .~.~.~.~.~.~.~> Ring sulfur or ring oxygen in the additional hetero ring
210  DF  .~.~.~.~.~.~.~> Plural ring nitrogens in the additional hetero ring {1}

DEFINITION

Classification: 546/208

The additional hetero ring has at least nitrogen as a ring hetero atom:

(under subclass 207) Compounds in which the additional hetero ring contains ring nitrogen.

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