butanoyl-CoA + (R)-carnitine => O-butanoyl-(R)-carnitine + CoA
butanoyl-coa + (r)-carnitine => o-butanoyl-(r)-carnitine + coa
butanoyl-CoA + (R)-carnitine => O-butanoyl-(R)-carnitine + CoA
butanoyl-coa + (r)-carnitine => o-butanoyl-(r)-carnitine + coa