[(2S)-3-dihydroxyphosphinothioyloxy-2-methoxypropyl] octadecanoate [(2S)-3-dihydroxyphosphinothioyloxy-2-methoxy-propyl] octadecanoate octadecanoic acid [(2S)-3-dihydroxyphosphinothioyloxy-2-methoxypropyl] ester stearic acid [(2S)-3-dihydroxythiophosphoryloxy-2-methoxy-propyl] ester