Claims
- 1. Di-(lower-alkyl) hydroxy[2-oxo-2-PY-ethyl]propanedioate of the formula ##STR4## or pharmaceutically-acceptable acid-addition salt thereof, where PY is 4- or 3-pyridinyl or 4- or 3-pyridinyl having one or two lower-alkyl substituents, and R.sub.1 is lower-alkyl.
- 2. A compound according to claim 1 where PY is 4-pyridinyl or 3-pyridinyl and R.sub.1 is methyl or ethyl.
CROSS REFERENCE TO RELATED APPLICATION
This is a division, of application Ser. No. 144,697, filed Apr. 28, 1980 and now U.S. Pat. No. 4,304,776, to issue Dec. 8, 1981.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4004012 |
Lesher et al. |
Jan 1977 |
|
4072746 |
Lesher et al. |
Jul 1978 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
144697 |
Apr 1980 |
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