(13S)-hydroperoxy-(9Z,11E)-octadecadienoate <=> (12R,13R)-epoxy-(11S)-hydroxy-(9Z)-octadecenoate
(13s)-hydroperoxy-(9z,11e)-octadecadienoate <=> (12r,13r)-epoxy-(11s)-hydroxy-(9z)-octadecenoate
(13S)-hydroperoxy-(9Z,11E)-octadecadienoate <=> (12R,13R)-epoxy-(11S)-hydroxy-(9Z)-octadecenoate
(13s)-hydroperoxy-(9z,11e)-octadecadienoate <=> (12r,13r)-epoxy-(11s)-hydroxy-(9z)-octadecenoate