Journal
FITOTERAPIA
Volume 139, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.fitote.2019.104364
Keywords
Cordyceps takaomontana; Cordytakaoamides; Alkaloidal metabolites; Total synthesis; X-ray
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Funding
- Takeda Science Foundation, Japan
- Tokushima Bunri University, Japan
- National Research Centre, Egypt
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Two new alkaloidal metabolites, cordytakaoamides A (1) and B (2), as well as, 2-[(2-hydroxyethyl) amino) benzoic acid (3) and 2E-decenamide (4), and three known compounds (5-7) were isolated from ethyl acetate and n-butanol soluble portions of the entomopathogenic fungus, Cordyceps takaomontana NBRC 101754. Compounds 3 and 4 were isolated here for first time from natural resources. The chemical structures were established depending upon spectroscopic techniques such as 1D, 2D NMR, and HRMS. The absolute configuration of 1 and 2 was elucidated via the total synthesis of 1 as well as the experimental circular dichroism. Compound 3 was confirmed by a signal crystal X-ray analysis.
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