US PATENT SUBCLASS 536 / 5
.~.~.~ Cyclopentanohydrophenanthrene ring system

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1.11  DF  .~ Carbohydrates or derivatives {15}
4.1  DF  .~.~ O- or S- Glycosides {29}
5.~.~.~ Cyclopentanohydrophenanthrene ring system {2}
6  DF  .~.~.~.~> Oxygen containing six-membered hetero ring (e.g., oxathiane, etc.)
6.1  DF  .~.~.~.~> Oxygen containing five-membered hetero ring {2}

DEFINITION

Classification: 536/5

(under subclass 4.1) Compounds in which the aglycone moiety of the glycoside contains a cyclopentanohydrophenanthrene

nucleus.