H. Miyaoka et al., ANTIMALARIAL ACTIVITY OF KALIHINOL-A AND NEW RELATIVE DITERPENOIDS FROM THE OKINAWAN SPONGE, ACANTHELLA SP, Tetrahedron, 54(44), 1998, pp. 13467-13474
Three new kalihinane diterpenoids Delta(9)-kalihinoi Y (1), 10-epikali
hinol I (2) and 5,10-bisisothiocyanatokalihinol G (3) were isolated in
the present study along with previously detected kalihinane diterpeno
ids kalihinol A (4), kalihinene (5) and 6-hydroxykalihinene (6) from t
he Okinawan marine sponge, Acanthella sp. Kalihinol A (4) was noted to
possess remarkable in vitro antimalarial activity. (C) 1998 Elsevier
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