Cholinesterase inhibitory constituents from Onosma hispida |
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Authors: | Ahmad Ijaz Anis Itrat Malik Abdul Nawaz Sarfraz Ahmad Choudhary Muhammad Iqbal |
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Affiliation: | International Centre of Chemical Sciences, HEJ Research Institute of Chemistry, University of Karachi, Pakistan. |
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Abstract: | Hispidone, a new flavanone, has been isolated from Onosma hispida and assigned the structure (2S)-5,2'-dihydroxy-7,4',5'-trimethoxyflavanone (1) by spectroscopic methods. In addition, (2S)-5,2'-dihydroxy-7,5'-dimethoxyflavanone (2), benzoic acid (3), and 4-hydroxy benzoic acid (4) are also reported for the first time from this species. |
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