THE ISOLATION AND IDENTIFICATION OF FOUR NEW 2,2-DIMETHYLCHROMENES

GL Li, JF Zeng , DY Zhu, . THE ISOLATION AND IDENTIFICATION OF FOUR NEW 2,2-DIMETHYLCHROMENESJ. Acta Pharmaceutica Sinica, 1997, 32(9): 682-684.

Citation:

GL Li, JF Zeng , DY Zhu, . THE ISOLATION AND IDENTIFICATION OF FOUR NEW 2,2-DIMETHYLCHROMENESJ. Acta Pharmaceutica Sinica, 1997, 32(9): 682-684.

Citation:

GL Li, JF Zeng , DY Zhu, . THE ISOLATION AND IDENTIFICATION OF FOUR NEW 2,2-DIMETHYLCHROMENESJ. Acta Pharmaceutica Sinica, 1997, 32(9): 682-684.

Abstract

Four new 2,2-dimethylchromenes named leptol B (I), ethylleptol B (II), methylleptol B (III), leptene B (IV), along with a known chromene-methylevodionol (V) have been isolated from the aerial parts of Evodia lepta. Their structures were elucidated by spectroscopic analysis and chemical techniques.

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