(5Z,8Z,11Z,14Z,17Z)-eicosapentaenoate + O2 => (8R)-hydroperoxy-(5Z,9E,11Z,14Z,17Z)-eicosapentaenoate
(5z,8z,11z,14z,17z)-eicosapentaenoate + o2 => (8r)-hydroperoxy-(5z,9e,11z,14z,17z)-eicosapentaenoate
(5Z,8Z,11Z,14Z,17Z)-eicosapentaenoate + O2 => (8R)-hydroperoxy-(5Z,9E,11Z,14Z,17Z)-eicosapentaenoate
(5z,8z,11z,14z,17z)-eicosapentaenoate + o2 => (8r)-hydroperoxy-(5z,9e,11z,14z,17z)-eicosapentaenoate