Absolute determination of stereochemical configuration of some marine natural products / 国际药学研究杂志

The determination of stereochemical absolute structure is an important issue in structural elucidation of natural products. The absolute configuration of natural compounds with a chiral α, β -unsaturated ketone chromorphore can be determined by the Cotton effect in 320-350 nm (n→π,* transition) and 220-260 nm (π→π,* transition) regions of the circular dichroism (CD) spectrum. This paper reviews the absolute stereochemical asignment of some α, β-unsaturated ketone compounds as well as some of the longer fatty chain derived compounds.