(+)-3-{(4S,5S)-5-[1,1-dimethyl-2-(phenylthio)ethyl]-2,2-dimethyl-1,3-dioxolan-4-yl}prop-2-yn-1-ol

The absolute configuration was determined for the title compound, (+)-C18H24O3S, (I), which was prepared in a synthetic study on the natural products, bryostatins.