bis-Sigmodiol: a new prenylflavanone dimer from Erythrina sigmoidea Hua (Fabaceae) of Nigeria

Abstract

A new prenylflavanone dimer named bis-sigmodiol was isolated from Erythrina sigmoidea, along with six known constituents isobavachin, lupiwighteone, orientanol A, ergosta-4, 6, 8 (14), 22-tetraen-3-one, lupenyl acetate, and p-hydroxybenzoic acid. These known constituents have not been reported so far from E. sigmoidea. Their structures were elucidated by spectroscopic methods.

Keywords:

• bis-sigmodiol
• prenylflavanone
• dimer
• Erythrina sigmoidea
• Fabaceae

Acknowledgements

M.I.A. kindly acknowledges the enabling role of the Higher Education Commission, Islamabad (Pakistan) and appreciates the financial support through the Indigenous Ph.D. 5000 Fellowship Program (phase-II). P.A.O. is thankful to the TWAS for the financial support under the TWAS–UNESCO Associateship Scheme.