Claims
- 1. A substituted benzopyranopyridine of the formula; ##SPC4##
- wherein R.sub.1 and R.sub.2 may be hydrogen, hydroxy, lower alkoxy, or lower alkyl of 1 to 6 carbon atoms or taken together from a methylenedioxy group.
- 2. The compound according to claim 1 which is 1,2,3,4-tetrahydro-8,9-dimethoxy-3-[2-(1,2,3,6-tetrahydro-1-pyridyl)ethyl]-5H-[1]benzopyrano[3,4-c] pyridin-5-one.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 534,502, filed Dec. 19, 1974, the disclosure of which is hereby incorporated by reference, which is in turn a continuation-in-part of our application Ser. No. 343,613, filed Mar. 21, 1973 and now abandoned, the disclosure of which is hereby incorporated by reference, which is in turn a continuation-in-part of our application Ser. No. 122,498, filed Mar. 9, 1971 and now abandoned.
US Referenced Citations (5)
Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
534502 |
Dec 1974 |
|
Parent |
343613 |
Mar 1973 |
|
Parent |
122498 |
Mar 1971 |
|