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  • Title: Structural determination of three new germacrane-type sesquiterpene alcohols from curdione by microbial transformation.
    Author: Ma XC, Zheng J, Wu LJ, Guo DA.
    Journal: Magn Reson Chem; 2007 Jan; 45(1):90-2. PubMed ID: 17103486.
    Abstract:
    Five germacrane-type sesquiterpene alcohols obtained from curdione (1) by microbial biotransformation were isolated. Their structures were characterized as (2R)-2beta-hydroxycurdione (2), 1alpha, 10beta-epoxy-11-hydroxycurdione (3), (2S)-2alpha, 11-dihydroxycurdione (4), 11,15-dihydroxycurdione (5) and (3R)-3alpha-hydroxycurdione (6) based on the extensive NMR studies. Among them, 4, 5 and 6 are new compounds.
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