Claims
- 1. A compound of the formula: ##STR29## wherein R is hydrogen, lower alkyl, carboxy or carboxy protected by a conventional group convertible thereto by hydrolysis and R.sub.1 is hydroxy or oxo; R.sub.30 is --CH.sub.2 NO.sub.2 ;
- or enantiomers, racemates and salts thereof.
- 2. The compound of claim 1 wherein said compound is 2.alpha.-carboxymethyl-3.beta.-nitromethyl-4.alpha.-methoxycarbonylcyclopentanone.
- 3. A compound ##STR30## wherein R is hydrogen, lower alkyl, or carboxy esterified with a lower alkyl or benzyl; R.sub.2 is --CH.sub.2 --C.dbd.C--R.sub.3 or --CH.sub.2 --R'; R' is carboxy esterified with lower alkyl or benzyl; R.sub.3 is hydrogen or lower alkyl; and the dotted bond can be optionally hydrogenated,
- or enantiomers or racemates thereof.
- 4. The compound of claim 3 wherein said compound is 4.alpha.-methoxycarbonyl-3.beta.-nitromethyl-2.alpha.-(2-propenyl)-cyclopentanone.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a divisional application of Ser. No. 613,652 filed Sept. 15, 1975, now U.S. Pat. No. 4,089,889, issued May 16, 1968, which is a divisional application of Ser. No. 381,322 filed July 20, 1973, now abandoned, which is a continuation-in-part of Ser. No. 300,633 filed Nov. 25, 1972, now abandoned.
Non-Patent Literature Citations (1)
Entry |
derwent Abstract, 71738W/43, J. 5030-066, Sumo 25.12.70. |
Divisions (2)
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Number |
Date |
Country |
Parent |
613652 |
Sep 1975 |
|
Parent |
381322 |
Jul 1973 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
300633 |
Nov 1972 |
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