From the CH2Cl2 extract of seed kernels of Caesalpinia crista from Myanmar, two rare and biogenetically interesting methyl migrated cassane-type furanoditerpenes [caesalpinins MM (1) and MN (2)] and two normal cassane-type furanoditerpenes [caesalpinins MO (3) and MP (4)] have been isolated, together with eight known cassane-type diterpenes, 1-deacetoxy-1-oxocaesalmin C (5), 1-deacetylcaesalmin C (6), caesalmin C (7), bonducellpin C (8), caesaldekarin e (9), 2-acetoxycaesaldekarin e (10), 2-acetoxy-3-deacetoxycaesaldekarin e (11), and norcaesalpinin E (12). Among the known compounds, compounds 5 and 6 were for the first time isolated from a natural source. The structures of these compounds were elucidated by the use of spectroscopic techniques. © 2005 Pharmaceutical Society of Japan.
CITATION STYLE
Kalauni, S. K., Awale, S., Tezuka, Y., Banskota, A. H., Linn, T. Z., & Kadota, S. (2005). Methyl migrated cassane-type furanoditerpenes of Caesalpinia crista from Myanmar. Chemical and Pharmaceutical Bulletin, 53(10), 1300–1304. https://doi.org/10.1248/cpb.53.1300
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