3-methylbutanoyl-CoA <=> 2,2-dimethylpropanoyl-CoA
3-methylbutanoyl-coa <=> 2,2-dimethylpropanoyl-coa
3-methylbutanoyl-CoA <=> 2,2-dimethylpropanoyl-CoA
3-methylbutanoyl-coa <=> 2,2-dimethylpropanoyl-coa