Bioscience, Biotechnology and Biochemistry 2009-Mar
Isolation of antibabesial compounds from Brucea javanica, Curcuma xanthorrhiza, and Excoecaria cochinchinensis.
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One new curcuminoid, 3'-demethoxycyclocurcumin (1), was isolated from Curcuma xanthorrhiza as an antibabesial compound, together with p-hydroxybenzaldehyde (2) and cleomiscosin A (3) from Brucea javanica and (+)-epiloliolide (4) from Excoecaria cochinchinensis. The antibabesial activities were examined in vitro, and compounds 1-4, and diminazene aceturate were studied with IC(50) values of 16.6, 7.6, 15.6, 10.0, and 0.6 microg/ml, respectively.