The molecule is a cytochalasan alkaloid found in Chaetomium globosum and Chaetomium subaffine. It has a role as an antineoplastic agent and a Chaetomium metabolite. It is a cytochalasan alkaloid, a member of indoles, a macrocycle, an epoxide and a secondary alpha-hydroxy ketone.
(1R,5S,7E,9S,11E,13R,14S,16R,17S,18R,19S)-5-hydroxy-19-(1H-indol-3-ylmethyl)-7,9,16,17-tetramethyl-15-oxa-20-azatetracyclo[11.8.0.01,18.014,16]henicosa-7,11-diene-2,6,21-trione