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■ 6-Oxo-6a,12a-dehydro-α-toxicarol, a 6-Oxodehydrorotenone from the Roots of Derris oblonga Benth

Yun-Lian Lin and Yueh-Hsiung Kuo

*Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C.

Abstract

A 6-oxodehydrorotenone, 6-oxo-6a,12a-dehydro-α-toxicarol, together wih nineteen known compounds containing sugar, triterpenes, isoflavones, anthraquinones, rotenone, dehydrorotenones, 12a-hydroxyrotenones, coumestans, coumaronochromones and pterocarpen, were isolated from the roots of Derris oblonga, and characterized on the basis of spectral and chemical evidence.