2-methylpropanoyl-CoA + (R)-carnitine <=> O-isobutanoyl-(R)-carnitine + CoA
2-methylpropanoyl-coa + (r)-carnitine <=> o-isobutanoyl-(r)-carnitine + coa
2-methylpropanoyl-CoA + (R)-carnitine <=> O-isobutanoyl-(R)-carnitine + CoA
2-methylpropanoyl-coa + (r)-carnitine <=> o-isobutanoyl-(r)-carnitine + coa