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