1: Phytochemistry.  2004 Apr;65(8):1165-71.  

Diterpenes from the leaves of Croton zambesicus.

Block S, Baccelli C, Tinant B, Van Meervelt L, Rozenberg R, Habib Jiwan JL,
Llabres G, De Pauw-Gillet MC, Quetin-Leclercq J.

Laboratoire de Pharmacognosie, Unite CHAM, Universite Catholique de Louvain, UCL
72.30-CHAM, Av. E. Mounier, 72, 1200 Bruxelles, Belgium.

Two new trachylobane- and one isopimarane-type diterpenoids:
ent-18-hydroxy-trachyloban-3-one; ent-trachyloban-3-one;
isopimara-7,15-dien-3beta-ol, were isolated from the leaves of Croton
zambesicus, together with trans-phytol, beta-sitosterol, alpha-amyrin and
stigmasterol. The structures were determined by extensive NMR techniques and
X-ray analysis. The cytotoxicity of these compounds has been evaluated on cancer
and non-cancer cell-lines.

PMID: 15110699 [PubMed - indexed for MEDLINE]