Claims
- 1. A benzopyranopyridine of the general formula: ##SPC5##
- wherein R.sub.1 and R.sub.2 may be hydrogen, hydroxy, lower alkoxy or lower alkyl of 1 to 6 carbon atoms or may be taken together to form a methylenedioxy group; X may be oxygen, sulfur, CH.sub.2 CH.sub.2, a bond connecting the adjacent carbon atoms, CH--R.sub.3 or N--R.sub.3 wherein R.sub.3 may be hydrogen or lower alkyl of 1 to 6 carbon atoms; or the hydrochloride salts thereof.
- 2. A benzopyranopyridine according to claim 1 wherein R.sub.1 is a lower alkoxy; R.sub.2 is a lower alkoxy; and X is an oxygen or --CH.sub.2 -- radical.
- 3. The benzopyranopyridine according to claim 2 which is 1,2,3,4-tetrahydro-8,9-dimethoxy-3-(2-[4-(2-morpholinoethyl)-1-piperazinyl]ethyl)-5H-[1]benzopyrano[3,4-c]pyridin-5-one trihydrochloride.
- 4. The benzopyranopyridine according to claim 2 which is 1,2,3,4-tetrahydro-8,9-dimethoxy-3-{2-[4-(2-piperidinoethyl)-1-piperazinyl]-ethyl}-5H-[1]benzopyrano[3,4-c]pyridin-5-one trihydrochloride.
Parent Case Info
This application is a continuation-in-part of our application Ser. No. 534,502, filed Dec. 19, 1974, now U.S. Pat. No. 3,946,008 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, 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.
Foreign Referenced Citations (1)
Number |
Date |
Country |
2,351,734 |
Apr 1974 |
DT |
Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
534502 |
Dec 1974 |
|
Parent |
343613 |
Mar 1973 |
|
Parent |
122498 |
Mar 1972 |
|