Design and synthesis of angucyclinone AB-pyrido[2,3-d] pyrimidine analogues |
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Authors: | Jaime A Valderrama David Vásquez |
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Institution: | Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago, Chile |
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Abstract: | The preparation of two pyrimido4,5-c]isoquinoline-7,10-quinones from acylhydroquinones and 1,3-dimethyl-5-aminouracil and their cycloadditions with 1-trimethylsilyloxybutadiene and 1-dimethylamino-3-methyl-1-azabutadiene is described. The remarkable regiocontrol of these cycloadditions that yield stable 1:1 cycloadducts is discussed on the basis of steric interactions into the pyrimido4,5-c]isoquinoline-7,10-quinones. The access to angucyclinone AB-pyridopyrimidine analogues from Diels-Alder adducts and preliminar evidences on their antitumour activities are also reported. |
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Keywords: | Quinones Michael addition Diels-Alder reaction Regioselectivity |
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