Claims
- 1. 1,2,3,4-Tetrahydro-8-methoxy-5H-[1]benzopyrano-[3,4-c]pyridin-5-one.
- 2. 1,2,3,4-Tetrahydro-5H-[1]benzopyrano[3,4-c]pyridin-5-one.
- 3. 1,2,3,4-Tetrahydro-8,9-dimethoxy-5H-[1]benzopyrano-[3,4-c]pyridin-5-one hydrochloride.
Parent Case Info
This application is a continuation of our co-pending application Ser. No. 538,424, filed Jan. 3, 1975, which in turn is a divisional application of U.S. Ser. No. 343,613, filed Mar. 23, 1973, now abandoned, which in turn is a continuation-in-part of U.S. Application Ser. No. 122,498 filed Mar. 9, 1971, now abandoned.
US Referenced Citations (4)
Divisions (1)
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Number |
Date |
Country |
Parent |
343613 |
Mar 1973 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
538424 |
Jan 1975 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
122498 |
Mar 1971 |
|