23,24-dihydrocucurbitacin B + NADP(+) <=> cucurbitacin B + NADPH + H(+)
23,24-dihydrocucurbitacin b + nadp(+) <=> cucurbitacin b + nadph + h(+)
23,24-dihydrocucurbitacin B + NADP(+) <=> cucurbitacin B + NADPH + H(+)
23,24-dihydrocucurbitacin b + nadp(+) <=> cucurbitacin b + nadph + h(+)