Isolation and Characterization of Two New Compounds from Genus Sonchus

Zia Muhammad¹, Shabir Ahmad¹, Riaz Ullah^{3, 4}, Farman Ullah² and Saleem Jan²

¹Department of Chemistry, Kohat University of Science and Technology Kohat, Kohat -260 00, K.P.K (Pakistan). ²Department of Chemistry, Bannu University of Science and Technology Bannu, K.P.K (Pakistan). ³Department of Chemical Engineering, College of Engineering, King Saud University, P.O BOX 800, Riyadh 11421 (Saudi Aarbia). ⁴Department of Chemistry Govt College Ara Khel FR Kohat K.P.K (Pakistan).

Abstract: Two new compounds Erucaoic acid (1) and sonchusnoate (2) were isolated from the whole plant of Sonchus eruca and Sonchus asper respectively. Both species belong from genus Sonchus. The structures of the compounds were elucidated through extensive spectroscopic analysis including EIMS, HREIMS, 1H-NMR, 13C-NMR and including advance techniques like NMR 1H-1H COSY, HMBC, and NOESY.

Keywords: S. eruca; S. Asper; erucaoic acid; sonchusnoate

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