preferred_name: (2E)-butenoyl-CoA + (R)-carnitine => O-(2E)-butenoyl-(R)-carnitine + CoA
preferred_name_lc: (2e)-butenoyl-coa + (r)-carnitine => o-(2e)-butenoyl-(r)-carnitine + coa
label: (2E)-butenoyl-CoA + (R)-carnitine => O-(2E)-butenoyl-(R)-carnitine + CoA
label_lc: (2e)-butenoyl-coa + (r)-carnitine => o-(2e)-butenoyl-(r)-carnitine + coa