2-methylbutanal + CO2 => (S)-3-methyl-2-oxopentanoate + H(+)
2-methylbutanal + co2 => (s)-3-methyl-2-oxopentanoate + h(+)
2-methylbutanal + CO2 => (S)-3-methyl-2-oxopentanoate + H(+)
2-methylbutanal + co2 => (s)-3-methyl-2-oxopentanoate + h(+)