(2E)-butenoyl-CoA + H2O => (2R)-hydroxybutanoyl-CoA
(2e)-butenoyl-coa + h2o => (2r)-hydroxybutanoyl-coa
(2E)-butenoyl-CoA + H2O => (2R)-hydroxybutanoyl-CoA
(2e)-butenoyl-coa + h2o => (2r)-hydroxybutanoyl-coa