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12-Hydroxyamoorastatone, a New Limonoid from Melia azedarach var. Japonica
Jong-Woong Ahn,Geon-Seek Yoo,Zaesung No,Seung-Ho Lee Korean Chemical Society 1993 Bulletin of the Korean Chemical Society Vol.14 No.5
A chemical investigation of the stem bark of Melia azedarach var. Japonica (Meliaceae) has led to a new limonoid, 12-hydroxyamoorastatone (1), whose structure has been elucidated by spectroscopic measurements including 2D-NMR. The 2D-NOESY experiment on its di-p-bromobenzoate derivative (1a) has established the relative configuration of 1.