US PATENT SUBCLASS 560 / 122
.~.~.~ Cyclopentyl-COOR, -C-COOR or -C-C-COOR

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {17}
1  DF  .~ Carboxylic acid esters {14}
121  DF  .~.~ Cyclopentyl in acid moiety (e.g., prostaglandins, etc.) {1}
122.~.~.~ Cyclopentyl-COOR, -C-COOR or -C-C-COOR

DEFINITION

Classification: 560/122

Cyclopentyl - (C)x - COOR; x=0-2:

(under subclass 121) Compounds wherein the carboxylic acid ester function is directly attached to the cyclopentyl nucleus or is attached thereto by a chain of no more than two carbon atoms.

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