Taxonomy: Physicochemical and Pharmaological Properties of Flavonoids – Flavons and Flavon-3-ols
Biological sources: Glycyrrhiza eurycarpa [1]
C25H24O4: 388.4676
Mp: 246–248°C, yellow needles
UV: 235 (3.88), 257 (3.94), 270 sh (3.96), 335 (3.38) [1]
EI-MS: 389 (M + 1)+ (6), 388 (M)+ (19), 373 (100), 205 (2), 169 (13), 149 (5) [1]
HR-MS: 388.1695 (M+, C25H24O4) [1]
1 H NMR (400 MHz, acetone-d6): 1.74 (3H, br s, Me-11), 1.76 (3H, br s, Me-11), 3.42 (2H, br d, H-9), 5.40 (1H, br t, H-10), 5.86 (6H, s, Me-9′), 6.54 (1H, d, H-7′), 6.61 (1H, s, H-3), 6.90 (1H, d., H-5′), 7.06 (1H, s, H-8), 7.74 (1H, dd, H-2′), 7.80 (1H, dd, H-6′), 7.82 (1H, s, H-5), [1]
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References
T. Fukai, J. Nishizawa, T. Nomura, Phytochemistry 35, 515 (1994)
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(2013). Kanzonol-E. In: Azimova, S.S., Vinogradova, V.I. (eds) Natural Compounds. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0535-1_358
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