4-hydroxy-6-(2-oxononadecyl)pyran-2-one + 3 CO2 + 4 CoA => octadecanoyl-CoA + 3 malonyl-CoA + 3 H(+)
4-hydroxy-6-(2-oxononadecyl)pyran-2-one + 3 co2 + 4 coa => octadecanoyl-coa + 3 malonyl-coa + 3 h(+)
4-hydroxy-6-(2-oxononadecyl)pyran-2-one + 3 CO2 + 4 CoA => octadecanoyl-CoA + 3 malonyl-CoA + 3 H(+)
4-hydroxy-6-(2-oxononadecyl)pyran-2-one + 3 co2 + 4 coa => octadecanoyl-coa + 3 malonyl-coa + 3 h(+)