Isolation and Characterization of Zygadenine- N- ribofuranoside from the Leaves of  Nymphaea alba Lily

Peter Chidi Njoku; Johnbull O. Echeme; Rosemary I. Uchegbu; Emeka C. Ogoko

doi:10.9734/ACSJ/2016/19929

Research Article Open access CC BY 4.0

Isolation and Characterization of Zygadenine- N- ribofuranoside from the Leaves of Nymphaea alba Lily

Peter Chidi Njoku, Johnbull O. Echeme, Rosemary I. Uchegbu, Emeka C. Ogoko

Chemical Science International Journal · pp. 1–5 · Published 19 Jan 2016

10.9734/ACSJ/2016/19929

Abstract

Aims: To isolate and characterize a new secondary metabolite, zygadenine-N-ribofuranoside derivative from the leaves of water lily (Nymphaeae alba L.). Methodology: The ethanol extract of the dried leaves was partitioned between chloroform and water (1:1), then the chloroform fraction was further partitioned between petroleum ether (60-80°C) and aqueous methanol (1:1). Column chromatography of the chloroform fraction over silica gel (200 mesh) by a gradient elution technique from petroleum ether to chloroform, followed by methanol was carried out. Results: A yellow solid 0.22 g was isolated which was characterized by employing IR, 1D and 2D NMR techniques spanning 1H, 13C, 1H-1H COSY, 1H-13C COSY, HMBC and TOF ESI-mass spectrometry. Conclusion: Zygadenine-N-ribofuranoside derivative isolated, gave m/z 622.4631, corresponding to molecular formula C33H54O9N2.

Nymphaea alba ribofuranoside secondary metabolite zygadenine

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Peter Chidi Njoku, Johnbull O. Echeme, Rosemary I. Uchegbu, Emeka C. Ogoko (2016). Isolation and Characterization of Zygadenine- N- ribofuranoside from the Leaves of Nymphaea alba Lily. Chemical Science International Journal , 1–5. https://doi.org/10.9734/ACSJ/2016/19929

Affiliations

Peter Chidi Njoku — Department of Chemistry, Alvan Ikoku Federal University of Education, P.M.B. 1033, Owerri, Imo State, Nigeria
Johnbull O. Echeme — Department of Chemistry, Michael Okpara University of Agriculture, Umudike P.M.B. 7267, Umuahia, Abia State, Nigeria
Rosemary I. Uchegbu — Department of Chemistry, Alvan Ikoku Federal University of Education, P.M.B. 1033, Owerri, Imo State, Nigeria
Emeka C. Ogoko — Department of Chemistry, National Open University of Nigeria, P.M.B.80067, Lagos, Nigeria

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