23,24-dihydrocucurbitacin B + NAD(+) = cucurbitacin B + NADH + H(+)
23,24-dihydrocucurbitacin b + nad(+) = cucurbitacin b + nadh + h(+)
23,24-dihydrocucurbitacin B + NAD(+) = cucurbitacin B + NADH + H(+)
23,24-dihydrocucurbitacin b + nad(+) = cucurbitacin b + nadh + h(+)