The synthesis of new tetracyclic 4H-furo[3,2-g]pyrrolo[3,2,1-ij]quinolin-4-ones, 15-17, 1H,5H-benzofuro[5,6, 7-ij]quinolizin-5-ones, 18-20, and 3H,5H-benzofuro[5,6,7-ij]quinolizin-5-ones, 21-23 is described. The planarity of the structure of benzofuroquinolizin-5-one 18 was determined by X-ray single-crystal analysis.
SYNTHESIS OF METHYL-DERIVATIVES OF NEW POLYCYCLIC SYSTEMS OF 4H-FURO[3,2-G]PYRROLO[3,2,1-IJ]QUINOLIN-4-ONE, OF 1H,5H-BENZOFURO[5,6,7-IJ]QUINOLIZIN-5-ONE AND 3H,5H-BENZOFURO[5,6,7-IJ]QUINOLIZIN-5-ONE
BANDOLI, GIULIANO;CHILIN, ADRIANA;MANZINI, PAOLO;GUIOTTO, ADRIANO
1993
Abstract
The synthesis of new tetracyclic 4H-furo[3,2-g]pyrrolo[3,2,1-ij]quinolin-4-ones, 15-17, 1H,5H-benzofuro[5,6, 7-ij]quinolizin-5-ones, 18-20, and 3H,5H-benzofuro[5,6,7-ij]quinolizin-5-ones, 21-23 is described. The planarity of the structure of benzofuroquinolizin-5-one 18 was determined by X-ray single-crystal analysis.
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