(12S,13R)-epoxy-(10R)-hydroxy-(8E)-octadecenoate => (8E,10R,12Z)-10-hydroperoxyoctadeca-8,12-dienoate
(12s,13r)-epoxy-(10r)-hydroxy-(8e)-octadecenoate => (8e,10r,12z)-10-hydroperoxyoctadeca-8,12-dienoate