Weimar, C. and Angerer, S. von and Wiegrebe, Wolfgang (1991) Synthesis of C-13-Alkylated 8-oxoberberbines. Archiv der Pharmazie 324, pp. 907-912.
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Abstract
C-13-alkylated methoxy-8H-dibenzo[a,g]quinolizin-8-ones 2a-e were synthesized
by photocyclization of 1 -alkylidene-N-benzoyl-1,2,3,4-tetrahydroisoquinolines
1. Moreover, condensation of 1,2,3,4-tetrahydro-6,7-dimethoxy-
1-oxo-isoquinoline with homophthalic acid anhydrides 7a and b leads to
the C-13-alkylated 8-oxoberbines 2b and c and improves the yields compared
with those of the photocyclization method.
Die C-13-alkylierten Methoxy-8H-dibenzo[a,g]chinolizin-8-one 2a-e wurden
durch Photozyklisierung der 1-Alkyliden-N-benzoyl-1,2,3,4-tetrahydroisochinoline
1 synthetisiert, aber auch die Kondensation von 1,2,3,4-Tetrahydro-
6,7-dimethoxy-1-oxo-isochinolin mit den Homophthalsäureanhydriden
7a und b führt zu den C-13-alkylierten 8-Oxoberbinen 2b und c und verbessert
die Ausbeuten, verglichen mit der Photozyklisierungsmethode.
| Item Type: | Article |
|---|---|
| Institutions: | Chemistry and Pharmacy > Institute of Pharmacy > Retired Professors > Prof. Wiegrebe |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Status: | Published |
| Refereed: | Yes, this version has been refereed |
| Created at the University of Regensburg: | Unknown |
| Owner: | Universitätsbibliothek Regensburg |
| Deposited On: | 08 Jul 2010 07:11 |
| Last Modified: | 21 Jul 2011 00:32 |
| Item ID: | 15733 |
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