The molecule is a spiro-epoxide with potent cytotoxic activity against human tumour cells. It is isolated from Pseudomonas sp. no.2663. It has a role as an antineoplastic agent and a bacterial metabolite. It is an acetate ester, a cyclic hemiketal, a member of pyrans, a secondary alcohol, a monocarboxylic acid amide and a spiro-epoxide.
[(Z,2S)-5-[[(2R,3R,5S,6S)-2,5-dimethyl-6-[(2E,4E)-3-methyl-5-[(3R,4R,5S,7R,8R)-4,5,8-trihydroxy-5-methyl-1,6-dioxaspiro[2.5]octan-7-yl]penta-2,4-dienyl]oxan-3-yl]amino]-5-oxopent-3-en-2-yl] acetate