US PATENT SUBCLASS 514 / 179
.~.~.~.~ Modified C-ring (except methyl in 13-position) (e.g., double bond containing, substituted, etc.)

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}
169  DF  .~ Cyclopentanohydrophenanthrene ring system DOAI {5}
177  DF  .~.~ Oxygen double bonded to a ring carbon of the cyclopentanohydrophenanthrene ring system {1}
178  DF  .~.~.~ Oxygen single bonded to a ring carbon of the cyclopentanohydrophenanthrene ring system {2}
179.~.~.~.~ Modified C-ring (except methyl in 13-position) (e.g., double bond containing, substituted, etc.) {1}
180  DF  .~.~.~.~.~> 9-position substituted

DEFINITION

Classification: 514/179

Modified C-ring (except methyl in 13-position) (e.g., double bond containing substituted, etc.):

(under subclass 178) Subject matter wherein the C-ring of the cyclopentanohydrophenanthrene ring system contains a double bond or is substituted, other than -CH3 in 13-position, i.e., 18-methyl.

(1) Note. For the purpose of this classification, the C-ring is defined as including positions 8, 9, 11, 12, 13, and 14.

(2) Note. See subclass 169 for the numbering system of a cyclopentanohydrophenanthrene nucleus.

(3) Note. This subclass contains for example: [figure] [figure] [caption], etc.