label: (3R)-hydroxy-(11Z,14Z,17Z,20Z)-hexacosatetraenoyl-CoA <=> (2E,11Z,14Z,17Z,20Z)-hexacosapentaenoyl-CoA + H2O
label_lc: (3r)-hydroxy-(11z,14z,17z,20z)-hexacosatetraenoyl-coa <=> (2e,11z,14z,17z,20z)-hexacosapentaenoyl-coa + h2o