Benzisochromanquinones in ventilago species |
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| Authors: | T. Hanumaiah David S. Marshall B.K. Rao C.P. Rao G.S.R. Rao J.U.M. Rao K.V.J. Rao Ronald H. Thomson |
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| Affiliation: | 1. Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen, AB9 2UE, Scotland, U.K. |
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| Abstract: | From the acetone extract of the root bark of Ventilago maderaspatana eight new benzisochromanquinones; ventiloquinones A, B, C, D, E, F, G and H, have been isolated. Ventiloquinones I, J and K are three more new benzisochromanquinones isolated from the root bark of V. calyculata. The majority are 3,4,5,10-tetrahydro-cis-1,3-dimethyl-1H-naphtho[2,3-c]pyran-5,10-quinones related to eleutherin, but F, H, I, J and K are 6,9-quinones related to ventilagone. |
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| Keywords: | Rhamnaceae benzisochromanquinone ventiloquinone. |
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