Publications by authors named "Ejike Onwudiegwu Okpala"

The aromatic amide: ---coumaroyltyramine () was isolated for the first time from the stem bark of (Ulmaceae). Its four new derivatives (-) and previously reported diacetylated product () have been synthesized and characterized spectroscopically followed by their screening for anti-urease potential. The diacetylated product () was found to be the most potent inhibitor with an IC value of 19.

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A new iso-benzofuranone propanamide: 3-(3-oxo-1, 3-dihydroisobenzofuran-1-yl) propanamide (zenkeramide) ( along with three known compounds: Trans-N-coumaroyltyramine (), β-Sitosterol () and sitosterol-3-D-glucopyranoside () were isolated from the ethyl acetate fraction of the stem-bark of Engl (Ulmaceae). The structure of the new compound was elucidated by extensive spectroscopic analysis. The compounds were examined for Urease Inhibitory Activity.

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