preferred_name: 1,2-di-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine + 1-tetradecanoyl-sn-glycero-3-phosphocholine <=> 1-tetradecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine + 1-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phosphocholine