Miles, C. O., Wilkins, A. L., Hawkes, A. D., Jensen, D. J., Cooney, J. M., Larsen, K., Petersen, D., et al. (2006). Isolation and identification of a cis-C8-diol-ester of okadaic acid from Dinophysis acuta in New Zealand. Toxicon, 48(2), 195-203.
Permanent Research Commons link: http://hdl.handle.net/10289/8400
A cis-isomer of a C8-diol ester of okadaic acid (1) was isolated during large-scale purification of pectenotoxins (PTXs) from extracts of Dinophysis acuta collected from the west coast of South Island, New Zealand. The compound was identified by NMR spectroscopic and liquid chromatography-mass spectrometry (LC-MS) studies, and is the first reported cis-isomer of an okadaic acid C₈-diol-ester identified in Dinophysis. The more abundant trans-C₈-diol ester of okadaic acid (2) isolated from the same Dinophysis extract was rapidly hydrolyzed to okadaic acid in vitro by the supernatant from green-lipped mussel hepatopancreas.