1-octadecanoyl-2-pentanoyl-sn-glycero-3-phosphocholine + H2O => pentanoate + 1-octadecanoyl-sn-glycero-3-phosphocholine + H(+)
1-octadecanoyl-2-pentanoyl-sn-glycero-3-phosphocholine + h2o => pentanoate + 1-octadecanoyl-sn-glycero-3-phosphocholine + h(+)