octadecanoate + O2 => (2R)-2-hydroperoxyoctadecanoate
octadecanoate + o2 => (2r)-2-hydroperoxyoctadecanoate
octadecanoate + O2 => (2R)-2-hydroperoxyoctadecanoate
octadecanoate + o2 => (2r)-2-hydroperoxyoctadecanoate