preferred_name: 1-(9Z)-octadecenoyl-2-octadecanoyl-sn-glycero-3-phosphocholine + 1-nonadecanoyl-sn-glycero-3-phosphocholine => 2-octadecanoyl-sn-glycero-3-phosphocholine + 1-nonadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine