US PATENT SUBCLASS 514 / 219
.~.~.~ Polycyclo ring system having the seven-membered hetero ring as one of the cyclos

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
183  DF  .~ Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., O,S,Se or Te) or nitrogen as the only ring hetero atoms DOAI {16}
218  DF  .~.~ Hetero ring is seven-membered consisting of two nitrogens and five carbon atoms {1}
219.~.~.~ Polycyclo ring system having the seven-membered hetero ring as one of the cyclos {2}
220  DF  .~.~.~.~> Tricyclo ring system having the seven-membered hetero ring as one of the cyclos
221  DF  .~.~.~.~> Bicyclo ring system having the seven-membered hetero ring as one of the cyclos

DEFINITION

Classification: 514/219

Polycyclo ring system having the seven-membered hetero ring as one of the cyclos:

(under subclass 218) Subject matter wherein the seven-membered hetero ring is one of the cyclos of a polycyclo ring system.