(3R)-3-hydroxybutanoyl-CoA => (3S)-3-hydroxybutanoyl-CoA
(3r)-3-hydroxybutanoyl-coa => (3s)-3-hydroxybutanoyl-coa
(3R)-3-hydroxybutanoyl-CoA => (3S)-3-hydroxybutanoyl-CoA
(3r)-3-hydroxybutanoyl-coa => (3s)-3-hydroxybutanoyl-coa