(2S)-ethylmalonyl-CoA + NADP(+) => (2E)-butenoyl-CoA + CO2 + NADPH
(2s)-ethylmalonyl-coa + nadp(+) => (2e)-butenoyl-coa + co2 + nadph
(2S)-ethylmalonyl-CoA + NADP(+) => (2E)-butenoyl-CoA + CO2 + NADPH
(2s)-ethylmalonyl-coa + nadp(+) => (2e)-butenoyl-coa + co2 + nadph