Labdane Diterpenes from the Aerial Parts of Curcuma comosa Enhance Fetal Hemoglobin Production in an Erythroid Cell Line

[摘要]：Three new labdane diterpenes, curcucomosin A-C (1-3), four known labdane diterpenes, 4-7, and a known diarylheptanoid, 8, were isolated from the aerial parts of Curcuma comosa. The structures of the new diterpenes were elucidated by spectroscopic data analysis. The fetal hemoglobin (Hb F) induction potency of the isolated compounds was examined using a K562 reporter cell line harboring the enhanced green fluorescene protein (EGFP) gene under the control of a (G)gamma-globin promoter. Compound 6, D, exhibited the highest Hb F induction effect of 1.6-fold at 20 mu M.

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