1'-[1,2-di-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phospho]-3'-[2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phospho]-glycerol + 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine = 1',3'-bis-[1,2-di-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phospho]-glycerol + 1-hexadecanoyl-sn-glycero-3-phosphocholine — reaction