octadecanoyl-CoA + malonyl-CoA + H(+) <=> 3-oxoeicosanoyl-CoA + CO2 + CoA
octadecanoyl-coa + malonyl-coa + h(+) <=> 3-oxoeicosanoyl-coa + co2 + coa
octadecanoyl-CoA + malonyl-CoA + H(+) <=> 3-oxoeicosanoyl-CoA + CO2 + CoA
octadecanoyl-coa + malonyl-coa + h(+) <=> 3-oxoeicosanoyl-coa + co2 + coa