Taxonomy: Physicochemical and Pharmacological Properties of Alkaloids - Diisoquinoline Alkaloids
Biological sources: Berberis amurensis, B. iliensis, B. vulgaris
C19H16N+O4: 322.1079
Mp: 285-286°C (iodide), 180°C (tetrahydro) [1]
Solubility: very sol. CHCl3, MeOH; spar. sol. C6H6, Et2O [1]
UV: 235, 276, 354, 350(4.30, 4.10, 3.91, 3.78) [1]
IR: 3350 [1]
1 H NMR: 3.00(2H, t, J = 7, H-5), 3.75(3H, s, OCH3), 4.30(2H, t, J = 7, H-6), 5.98(2H, s, CH2O2), 6.12(1H, d, J = 8.5), 6.77(1H, s), 7.12(1H, s), 7.13(1H, d, J = 8.5), 7.47(1H, s), 9.11(1H, s) [1]
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