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Two known bis-indole alkaloids isolated from Tabernaemontana laeta: complete 1H and 13C chemical shift assignments

✍ Scribed by W. L. B. Medeiros; I. J. C. Vieira; L. Mathias; R. Braz-Filho; K. Z. Leal; E. Rodrigues-Filho; J. Schripsema

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
85 KB
Volume
37
Category
Article
ISSN
0749-1581

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✦ Synopsis

An NMR study of two known bis-indole alkaloids is described. In addition to conventional 1D NMR methods, 2D shift-correlated NMR experiments [ 1 Hx 1 H-COSY, 1 Hx 13 C-HMQC-1 J(C,H), 1 Hx 13 C-HMBC-n J(C,H) (n D 2 and 3)] and 2D 1 Hx 1 H-NOESY were used for 1 H and 13 C chemical shift assignments of these alkaloids.

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