(13R)-hydroperoxy-(9Z,11E,15Z)-octadecatrienoate => (11R)-hydroperoxy-(9Z,12Z,15Z)-octadecatrienoate
(13r)-hydroperoxy-(9z,11e,15z)-octadecatrienoate => (11r)-hydroperoxy-(9z,12z,15z)-octadecatrienoate