TY - JOUR
T1 - Cassane- and norcassane-type diterpenes from Caesalpinia crista of Indonesia and their antimalarial activity against the growth of Plasmodium falciparum
AU - Linn, Thein Zaw
AU - Awale, Suresh
AU - Tezuka, Yasuhiro
AU - Banskota, Arjun H.
AU - Kalauni, Surya K.
AU - Attamimi, Faisal
AU - Ueda, Jun Ya
AU - Asih, Puji Budi Setia
AU - Syafruddin, Din
AU - Tanaka, Ken
AU - Kadota, Shigetoshi
PY - 2005/5
Y1 - 2005/5
N2 - The CH2Cl2 extract of the seed kernels of Caesalpinia crista, which exhibited promising antimalarial activity against Plasmodium berghei-mfected mice in vivo, was examined and resulted in the isolation of seven new furanocassane-type diterpenes [caesalpinins C-G (1-5) and norcaesalpinins D and E (6, 7)] together with norcaesalpinins A-C (8-10) and 11 known compounds (norcaesalpinins A-C, 2-acetoxy-3-deacetoxycaesaldekarin e, caesalmin B, caesaldekarin e, caesalpin F, 14(17)-dehydrocaesalpin F, 2-acetoxycaesaldekarin e, 7-acetoxybonducellpin C, and caesalmin G). Their structures were determined on the basis of spectroscopic analysis. The isolated diterpenes showed significant dose-dependent inhibitory effects on Plasmodium falciparum FCR-3/A2 growth in vitro. Their IC50 values ranged from 90 nM to 6.5 μM, and norcaesalpinin E (7) showed the most potent inhibitory activity (IC50, 90 nM).
AB - The CH2Cl2 extract of the seed kernels of Caesalpinia crista, which exhibited promising antimalarial activity against Plasmodium berghei-mfected mice in vivo, was examined and resulted in the isolation of seven new furanocassane-type diterpenes [caesalpinins C-G (1-5) and norcaesalpinins D and E (6, 7)] together with norcaesalpinins A-C (8-10) and 11 known compounds (norcaesalpinins A-C, 2-acetoxy-3-deacetoxycaesaldekarin e, caesalmin B, caesaldekarin e, caesalpin F, 14(17)-dehydrocaesalpin F, 2-acetoxycaesaldekarin e, 7-acetoxybonducellpin C, and caesalmin G). Their structures were determined on the basis of spectroscopic analysis. The isolated diterpenes showed significant dose-dependent inhibitory effects on Plasmodium falciparum FCR-3/A2 growth in vitro. Their IC50 values ranged from 90 nM to 6.5 μM, and norcaesalpinin E (7) showed the most potent inhibitory activity (IC50, 90 nM).
UR - http://www.scopus.com/inward/record.url?scp=20444498304&partnerID=8YFLogxK
U2 - 10.1021/np0401720
DO - 10.1021/np0401720
M3 - 学術論文
C2 - 15921414
AN - SCOPUS:20444498304
SN - 0163-3864
VL - 68
SP - 706
EP - 710
JO - Journal of Natural Products
JF - Journal of Natural Products
IS - 5
ER -