Toshio Honda, Mai Ohta and Hirotake Mizutani
(11S,12S,13S)-(9Z,15Z
)- and (11R,12S,13S
)-(9Z,15Z
)-11-hydroxy-12,13-epoxyoctadecadienoic acids and (11R,12S,13S
)-(9Z,15Z
)-11,12,13-trihydroxyoctadecadienoic acid, self-defensive substances against the rice blast disease, were synthesised enantioselectively by employing the Sharpless asymmetric epoxidation reaction of the unsymmetrical divinylmethanol, as a key step.