(E)-4-coumaroyl-CoA + NADPH + H(+) => (E)-4-coumaraldehyde + NADP(+) + CoA
(e)-4-coumaroyl-coa + nadph + h(+) => (e)-4-coumaraldehyde + nadp(+) + coa
(E)-4-coumaroyl-CoA + NADPH + H(+) => (E)-4-coumaraldehyde + NADP(+) + CoA
(e)-4-coumaroyl-coa + nadph + h(+) => (e)-4-coumaraldehyde + nadp(+) + coa