Claims
- 1. A carboxylic acid of the formula ##STR11## wherein R.sup.2 is hydrogen or lower alkyl and R.sup.11 is hydrogen, lower alkanoyl; alkanoyl substituted by halogen, alkoxy or aryloxy; alkoxycarbonyl; halogen substituted alkoxycarbonyl; aralkoxycarbonyl; halogen substituted aralkoxycarbonyl; aroylcarbonyl; or (3-oxo-4,7,7-trimethyl-2-oxabicyclo[2,2,1]hept-1-yl)carbonyl.
- 2. The compound in accordance with claim 1, (R/S)-2-(3-hydroxy-2-oxo-1-pyrrolidinyl)acetic acid.
- 3. The compound in accordance with claim 1, (R/S)-2-(3-acetoxy-2-oxo-1-pyrrolidinyl)acetic acid.
Priority Claims (2)
Number |
Date |
Country |
Kind |
4849/81 |
Jul 1981 |
CHX |
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2768/82 |
May 1982 |
CHX |
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Parent Case Info
This is a division of application Ser. No. 506,147 filed June 20, 1983, now U.S. Pat. No. 4,476,308, granted Oct. 9, 1984, which in turn is a continuation of Ser. No. 397,751 filed July 13, 1982, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (5)
Number |
Date |
Country |
845099 |
Feb 1977 |
BEX |
864269 |
May 1978 |
BEX |
892942 |
Oct 1982 |
BEX |
2759033 |
Aug 1978 |
DEX |
3104703 |
Nov 1981 |
DEX |
Divisions (1)
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Number |
Date |
Country |
Parent |
506147 |
Jun 1983 |
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Continuations (1)
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Number |
Date |
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Parent |
397751 |
Jul 1982 |
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