2-methylpropanal + CO2 => 3-methyl-2-oxobutanoate + H(+)
2-methylpropanal + co2 => 3-methyl-2-oxobutanoate + h(+)
2-methylpropanal + CO2 => 3-methyl-2-oxobutanoate + H(+)
2-methylpropanal + co2 => 3-methyl-2-oxobutanoate + h(+)