Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 51, Issue 2, Pages 232-233Publisher
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.51.232
Keywords
Nauclea cadamba; indole alkaloid; gluco alkaloid; structure elucidation; trasformation
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Three monoterpenoid gluco-indole alkaloids, 3beta-isodihydrocadambine, cadambine, and 3alpha-dihydrocadambine, were isolated from Nauclea cadamba ROXB. growing in Thailand. The stereochemistry at C19 in 3beta-isodihydrocadambine was elucidated to be R by spectroscopic analysis. Treatment of 3alpha-dihydrocadambine with beta-glucosidase in aqueous ammonium acetate solution gave an indolopyridine alkaloid, 16-carbomethoxynaufoline, and an unusually rearranged compound.
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