US PATENT SUBCLASS 540 / 595
.~.~.~.~.~.~ Benzene ring bonded directly to ring carbon of the hetero ring


Current as of: June, 1999
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540 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS {6}
484  DF  .~.~ The hetero ring contains seven members including nitrogen and carbon {14}
576  DF  .~.~.~ Polycyclo ring system which contains the hetero ring as one of the cyclos {4}
593  DF  .~.~.~.~ Bicyclo ring system which contains the hetero ring as one of the cyclos {1}
594  DF  .~.~.~.~.~ 3-Benzazepines (including hydrogenated) {1}
595.~.~.~.~.~.~ Benzene ring bonded directly to ring carbon of the hetero ring


DEFINITION

Classification: 540/595

(under subclass 594) Compounds in which a benzene ring is bonded directly to a ring carbon of the hetero ring.

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