1,2-dihexanoyl-sn-glycero-3-phosphocholine + 1,2-diheptanoyl-sn-glycero-3-phosphocholine <=> 1-heptanoyl-2-hexanoyl-sn-glycero-3-phosphocholine + 1-hexanoyl-2-heptanoyl-sn-glycero-3-phosphocholine
1,2-dihexanoyl-sn-glycero-3-phosphocholine + 1,2-diheptanoyl-sn-glycero-3-phosphocholine <=> 1-heptanoyl-2-hexanoyl-sn-glycero-3-phosphocholine + 1-hexanoyl-2-heptanoyl-sn-glycero-3-phosphocholine