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- URN to cite this document:
- urn:nbn:de:bvb:355-epub-157339
- DOI to cite this document:
- 10.5283/epub.15733
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 ...
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