Claims
- 1. A compound of the formula: ##STR29## wherein R.sub.4 is hydrogen, lower alkyl, carboxy or carboxy protected with a group convertible thereto by hydrolysis;
- or enantiomers or racemates thereof.
- 2. The compound of claim 1 wherein such compound is the 3,3a beta 4,5,6,6a beta-hexahydro-4.beta.-(3-oxo-1-trans-octenyl)2-oxo-2H-cyclopenta[b]furan-5.alpha.-carboxylic acid methyl ester.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a division of Ser. No. 381,322 filed July 20, 1973, now abandoned, which in turn is a continuation-in-part of our patent application Ser. No. 300,633, filed Nov. 25,1972, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3845115 |
Lincoln, Jr. et al. |
Nov 1974 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
381322 |
Jul 1973 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
300633 |
Nov 1972 |
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