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Novel norcassane-type diterpene from the seed kernels of Caesalpinia crista

✍ Scribed by Arjun H. Banskota; Faisal Attamimi; Tepy Usia; Thein Zaw Linn; Yasuhiro Tezuka; Surya K. Kalauni; Shigetoshi Kadota

Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
135 KB
Volume
44
Category
Article
ISSN
0040-4039

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✦ Synopsis

Three novel norcassane-type diterpenes were isolated from a CH 2 Cl 2 extract of the seed kernels of Caesalpinia crista together with four known cassane-type diterpenes. All the new compounds represent unprecedented carbon framework. Norcaesalpinin A (1) and B (2) had 17-norcassane skeleton, while norcaesalpinin C (3) had 16-norcassane skeleton. Their structures were elucidated on the basis of spectral analysis.

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