Claims
- 1. A compound of the formula: ##SPC3##
- wherein R is hydrogen, carboxymethyl, or carboxy, or the corresponding tautomeric forms or a pharmaceutically acceptable acid addition salt thereof.
- 2. The compound of Claim 1 wherein R is carboxy.
- 3. The compound of Claim 1 wherein R is carboxymethyl.
Parent Case Info
This is a division, of application Ser. No. 378,305 filed July 11, 1973, now U.S. Pat. No. 3,894,061.
Non-Patent Literature Citations (1)
Entry |
mitscher, et al., Journal of the American Chemical Society, vol. 92, (1970) pp. 6070 and 6071. |
Divisions (1)
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Number |
Date |
Country |
Parent |
378305 |
Jul 1973 |
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