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