J Nat Prod. 2002 Sep; 65(9): 1332-5.

Four new sesquiterpenoid derivatives from the heartwood of Mansonia gagei.

Tiew P, Ioset JR, Kokpol U, Schenk K, Jaiboon N, Chaichit N, Chavasiri W, Hostettmann K.

Institut de Pharmacognosie et Phytochimie, Université de Lausanne, BEP, Switzerland.

Four new sesquiterpenoid derivatives named mansonones N (1), O (2), P (3), and Q (4) were isolated from a dichloromethane extract of the heartwood of Mansonia gagei, a plant used in folk medicine in Thailand. Their structures were resolved on the basis of spectrometric data interpretation and the single-crystal X-ray analysis of 1 and 2.

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