US PATENT SUBCLASS 554 / 118
.~.~.~.~ Oxygen double bonded directly to the ring (i.e., the carbon of the additional carbonyl is part of the ring; e.g., homo prostaglandins, etc.)


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ Fatty compounds having an acid moiety which contains the carbonyl of a carboxylic acid, salt, ester, or amide group bonded directly to one end of an acyclic chain of at least seven (7) uninterrupted carbons, wherein any additional carbonyl in the acid moiety is (1) part of an aldehyde or ketone group, (2) bonded directly to a noncarbon atom which is between the additional carbonyl and the chain, or (3) attached indirectly to the chain via ionic bonding {23}
115  DF  .~.~ Additional carbonyl in the acid moiety (e.g., oiticica oil, licanic acid, etc.) {5}
117  DF  .~.~.~ Alicyclic ring in the acid moiety (e.g., prostaglandin analogs, etc.) {1}
118.~.~.~.~ Oxygen double bonded directly to the ring (i.e., the carbon of the additional carbonyl is part of the ring; e.g., homo prostaglandins, etc.) {1}
119  DF  .~.~.~.~.~> Additional oxygen bonded directly to the ring


DEFINITION

Classification: 554/118

(under subclass 117) Compounds wherein the carbon of the additional carbonyl is a ring carbon.

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

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