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Spectral studies on coumarins and the determination of the constitution of ekersenin by total synthesis

, : Spectral studies on coumarins and the determination of the constitution of ekersenin by total synthesis. Tetrahedron 34(8): 1221-1224

During the determination of the constitution of ekersenin isolated from Ekerbegia senegalensis, 8 isomeric monomethoxy-monomethylcoumarins were synthesized. These studies proved that ekersenin was 4-methoxy-5-methylcoumarin, a constitution with novel biosynthetic implications. Apparently ekersenin is the first example of natural coumarin biosynthesis involving only the polyketide route. Comparative spectral correlations on substituted coumarins are summarized.

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Accession: 006459942

DOI: 10.1016/0040-4020(78)80149-5

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Oguz, R.; Oguz, F.; Diler, A.S.; Yenigun, M.; Altuntas, Y.; Sar, F.; Carin, M., 2000: The relationship between GAD 65 antibody and HLA-DQB1 alleles in early onset type II diabetes mellitus in Turkish population. Human Immunology 61(Suppl 1): S83

Eichstaedt, H.C.; Easo, J.; Härle, T.; Dapunt, O.E., 2014: Early single-center experience in sutureless aortic valve implantation in 120 patients. The study objective was to evaluate the safety and efficacy of sutureless self-expanding nitinol stent-frame aortic valve prostheses made of equine pericardium implanted in patients with symptomatic aortic valve disease. We performed a retrospecti...

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Murphy, D.B.; Murphy, M.B., 1998: Methylnaltrexone does not attenuate high dose fentanyl induced suppression of the cortisol response to surgery. Canadian Journal of Anaesthesia 45(5 PART 2): A52, May

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Kathuria, S.; Khunger, N.; Ramesh, V., 2013: Clinical and hormonal evaluation in facial pigmentary demarcation lines: A pilot study. Indian Journal of Dermatology, Venereology and Leprology 78(6): 742-744