International Journal of Science and Technology

International Journal of Science and Technology>> Volume 7, Number 9, September 2017

International Journal of Science and Technology


Saponins from the Leaves of Cassia occidentalis (Caesalpiniaceae)

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Author M. Mohammed, M. M. Adeyemi, M. A. Aboki and S. H. Musa
On Pages 68-73
Volume No. 3
Issue No. 1
Issue Date January, 2013
Publishing Date January, 2013
Keywords Cassia occidentalis, Leaves, Saponins, Spectral data.


Abstract

Two Saponins 1 and 2 were isolated from the ethanolic extract of the leaves of Cassia occidentalis. Their structures were elucidated mainly by using a combination of 400 MHZ & 100MHZ 1D and 2D NMR techniques (COSY, NOESY, HSQC, DEPT and HMBC) and Mass spectroscopic method. It has been demonstrated that 1 is 3, 16, 23, 28 - tetrahydroxyoleana 11, 13 - diene - 3 - O - a - L - rhamnopyranosyl - (1 ? 4) - - D - glucopyranosyl - (1 ? 3) - [ - - D - glucopyranosyl - (1 ? 2)] - - D - fucopyranoside and 2 as 3 , 11 , 16 , 28 tetrahydroxy - 12 - ene - 3 - O - a - L - rhamnopyranosyl - ( 1 ? 4) - - D - glucopyranosyl - ( 1 ? 6 ) - - D - glucopyranoside.

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