US PATENT SUBCLASS 564 / 352
.~.~.~.~.~.~ The aryl ring or ring system is polycyclo

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37}
305  DF  .~.~ Benzene ring containing {24}
336  DF  .~.~.~ Amino nitrogen attached to aryl ring or ring system by an acyclic carbon or chain {11}
346  DF  .~.~.~.~ Ether oxygen is part of the chain {1}
347  DF  .~.~.~.~.~ The ether oxygen is bonded directly to the aryl ring or ring system {3}
352.~.~.~.~.~.~ The aryl ring or ring system is polycyclo

DEFINITION

Classification: 564/352

(under subclass 347) Compounds wherein the ring system is polycyclo.

(1) Note. This subclass contains, for example: [figure] [figure]