Cassane- and norcassane-type diterpenes of Caesalpinia crista from Myanmar

Surya K Kalauni; Suresh Awale; Yasuhiro Tezuka; Arjun H Banskota; Thein Zaw Linn; Shigetoshi Kadota

doi:10.1021/np049742m

Cassane- and norcassane-type diterpenes of Caesalpinia crista from Myanmar

J Nat Prod. 2004 Nov;67(11):1859-63. doi: 10.1021/np049742m.

Authors

Surya K Kalauni¹, Suresh Awale, Yasuhiro Tezuka, Arjun H Banskota, Thein Zaw Linn, Shigetoshi Kadota

Affiliation

¹ Institute of Natural Medicine, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama 930-0194, Japan.

PMID: 15568776
DOI: 10.1021/np049742m

Abstract

From the CH(2)Cl(2) extract of seed kernels of Caesalpinia crista from Myanmar, five new cassane-type diterpenes, caesalpinins MA-ME (1-5), and three new norcassane-type diterpenes, norcaesalpinins MA-MC (6-8), have been isolated, together with 12 known cassane-type diterpenes, 14(17)-dehydrocaesalmin F, caesaldekarin e, caesalmin B, caesalmin C, caesalmin E, 2-acetoxy-3-deacetoxycaesaldekarin e, 2-acetoxycaesaldekarin e, caesalpinin C, 7-acetoxybonducellpin C, caesalpinin E, norcaesalpinin B, and 6-acetoxy-3-deacetoxycaesaldekarin e. The structures of the isolated compounds were elucidated by analysis of their spectroscopic data.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Caesalpinia / chemistry*
Diterpenes / chemistry*
Diterpenes / isolation & purification*
Molecular Structure
Myanmar
Nuclear Magnetic Resonance, Biomolecular
Plants, Medicinal / chemistry*
Seeds / chemistry

Substances

Diterpenes