Structures of cadinane- and guaiane-type sesquiterpenoids from Enterospermum madagascariensis (Baill.) Homolle.

Magn Reson Chem

Laboratoire de Chimie des Substances Naturelles, Université de la Polynésie Française, BP 6570, 98702 Faaa, Tahiti, Polynésie Française, France.

Published: December 2005

Three new cadinane- and guaiane-type sesquiterpenoids, 2-hydroxy-10-epi-zonarene 1, 2, 15-dihydroxycalamenene 2 and guaia-4, 6-dien-3-one 3, were isolated from the wood of Enterospermum madagascariensis (Rubiaceae) grown in Madagascar. Their structures were established from concerted application of 2D NMR techniques including gs-COSY, gs-HMQC, gs-HMBC and NOESY.

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http://dx.doi.org/10.1002/mrc.1705DOI Listing

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