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Corytuberine

Reference work entry

CAS Registry Number: 517-56-6 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Alkaloids – Isoquinoline Alkaloids – Aporphine Alkaloids

Biological sources: Corydalis gortschakovii, Dicranostigma franschetianum, Glaucium fimbrilligerum

C19H21NO4: 327.1471

Mp: 232–234°C [3], 239–242°C [2]

[α]D +276° (CHCl3) [1], [α]D20 +288 (c 0.026, EtOH) [3]

UV: 225, 272, 311 [1]

UV (EtOH + KOH): 208(4.5), 226(4.4), 276(3.7), 318(3.7) [2]

UV (EtOH): 222(4.4), 268(4.0), 306(3.5) [2]

IR: 3400 (OH) [2]

MSm/z: 327(M+), 312, 310, 296, 284, 269, 253 [1]

1H NMR(CF3COOH): 3.40(3H, d, J = 6, NCH3), 4.07(6H, s, 2×OCH3), 6.96(1H, s), 7.11(2H, s) [1, 3]

1H NMR(DMSO-d6, 100 MHz): 2.55(3H, s, NCH3), 3.75(6H, s, 2OCH3), 4.50(2H, br s, 2OH), 6.53(1H, s, H-3), 6.58(1H, s, J = 8, H-9), 6.80(1H, d, J = 8, H-8) [2]

References

  1. 1.
    R. Shakirov, M.V. Telezhenetskaya, I.A. Bessonova, S.F. Aripova, I.A. Israilov, M.N. Sultankhodzhaev, V.I. Vinogradova, V.I. Akhmedzhanova, T.S. Tulyaganov, B.T. Salimov, V.A. Tel’nov, Chem. Nat. Comp. 32, 386 (1996)Google Scholar
  2. 2.
    S.T. Lu, I.L. Tsai, S.P. Leou, Phytochemistry 28, 615 (1989)Google Scholar
  3. 3.
    T. Kametani, M. Takemura, M. Ihara, Phytochemistry 15, 2017 (1976)Google Scholar

Copyright information

© Springer Science+Business Media New York 2013

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