propanoyl-CoA + acetyl-CoA => 2-methyl-3-oxobutanoyl-CoA + CoA
propanoyl-coa + acetyl-coa => 2-methyl-3-oxobutanoyl-coa + coa
propanoyl-CoA + acetyl-CoA => 2-methyl-3-oxobutanoyl-CoA + CoA
propanoyl-coa + acetyl-coa => 2-methyl-3-oxobutanoyl-coa + coa