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