label: 7R-hydroxy-5S,6S-epoxy-(8Z,11Z,14Z)-eicosatrienoate => (5S)-hydroperoxy-(6E,8Z,11Z,14Z)-eicosatetraenoate
label_lc: 7r-hydroxy-5s,6s-epoxy-(8z,11z,14z)-eicosatrienoate => (5s)-hydroperoxy-(6e,8z,11z,14z)-eicosatetraenoate