The syntheses of polycyclic molecules containing b-carboline units by the photochemically induced ring closure of enamides |
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Authors: | Michael Hutchins Malcolm Sainsbury David Scopes |
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Institution: | (University of Bath) School of Chemistry, University of Bath, Claverton Down, Bath, BA2 7ayUK;Glaxo Group Research Ltd., Ware, Hertfordshire SG12 ODJUK |
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Abstract: | The syntheses of 5-methyl-5,8,9,14-tetrahydroindolo(2,3-)indolo (2,3-) quinolizin-6-one and 15-methyl-7,8,13,15-tetrahydroindolo ( 3,2-) indolo(2,3-)quinolizin-5-one from the photochemical cyclisation of i-methylene-2-(N-`methylindole-2'-carbonyl) 1,2,3,4-tetrahydro-B-carboline and 1-methylene-2- (N-`methylindole-3' carbonyl) 1,2,3,4,-tetrahydro-B-carboline are described. Attempts to prepare indolo(2,3-)isoquinolines from the photochemical cyclisation of 2-benzamidoindoles were unsuccessful. |
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