Author/Authors :
Banskota، نويسنده , , Arjun H. and Attamimi، نويسنده , , Faisal and Usia، نويسنده , , Tepy and Linn، نويسنده , , Thein Zaw and Tezuka، نويسنده , , Yasuhiro and Kalauni، نويسنده , , Surya K. and Kadota، نويسنده , , Shigetoshi، نويسنده ,
Abstract :
Three novel norcassane-type diterpenes were isolated from a CH2Cl2 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.
