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Two Further bis-indole alkaloids from Tabernaemontana bovina

✍ Scribed by Helmut Ripperger; Christine Kamperdick; Günter Adam; Trinh Phuong Lien; Tran Van Sung


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
29 KB
Volume
341
Category
Article
ISSN
1615-4150

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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

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