(E)-3-diazocoumarate + NADH = N2 + (E)-4-coumarate + NAD(+)
(e)-3-diazocoumarate + nadh = n2 + (e)-4-coumarate + nad(+)
(E)-3-diazocoumarate + NADH = N2 + (E)-4-coumarate + NAD(+)
(e)-3-diazocoumarate + nadh = n2 + (e)-4-coumarate + nad(+)