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- AN ISOCOUMARIN DERIVATIVE FROM PAEPALANTHUS BROMELIOIDES
- Universidade Estadual Paulista (UNESP)
- The structure of 5,7,9,10-tetramethoxy-3-methyl-1 H-naphtho[2,3-c]pyran-1-one, C18H18O6, a derivative of a natural isocoumarin isolated from Paepalanthus bromelioides, was determined by X-ray analysis, which unequivocally confirmed the previously assigned structure. Small deviations from the standard angles, resulting from steric hindrance between the methoxyl and carbonyl groups, were observed.
- Acta Crystallographica Section C-crystal Structure Communications. Copenhagen: Munksgaard Int Publ Ltd, v. 50, p. 1269-1271, 1994.
- Munksgaard Int Publ Ltd
- Acesso restrito
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