label: 1,2-dioctadecanoyl-sn-glycero-3-phosphocholine + 1-hexadecanoyl-sn-glycero-3-phosphocholine => 1-hexadecanoyl-2-octadecanoyl-sn-glycero-3-phosphocholine + 1-octadecanoyl-sn-glycero-3-phosphocholine
label_lc: 1,2-dioctadecanoyl-sn-glycero-3-phosphocholine + 1-hexadecanoyl-sn-glycero-3-phosphocholine => 1-hexadecanoyl-2-octadecanoyl-sn-glycero-3-phosphocholine + 1-octadecanoyl-sn-glycero-3-phosphocholine