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3-O-Demethylhernandifoline

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Alkaloids – Isoquinoline Alkaloids

Biological sources: Stephania gernandifolia

C28H31NO9: 525.1999

Mp: 148–149°C (MeOH–Et2O) [1]

IR: 3560, 3440, 3200–2700, 1695, 1640, 1612, 1588, 1512, 1489 [1]

1H NMR: 1.85(1H, d, J = 10.5, H-9), 2.02(1H, q, J = 15; 2.3, H-5a), 2.62(1H, q, J = 10.5; 5.8, H-9), 3.17(1H, q, J = 15; 4.1, H-5e), 3.40, 3.41, 3.89(each 3H, s, 3 × OCH3), 3.74(1H, d, J = 4, H-7), 4.88(1H, d, J = 5.8, H-10), 5.35, 7.00(each 1H, d, J = 15.6, Ar-CH = CH-C = O), 5.40(1H, m, H-6), 6.50, 6.60(each 1H, d, J = 8, H-1, H-2), 6.89(3H, m, H–Ar) [1]

References

  1. 1.
    I.I. Fadeeva, M.E. Perel’son, O.N. Tolkachev, T.N. Il’inskaya, D.A. Fesenko, Chem. Nat. Comp 8, 136 (1972)Google Scholar

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