11-hydroxycucurbitadienol + oxidized [NADPH--hemoprotein reductase] + H2O + H(+) => cucurbitadienol + reduced [NADPH--hemoprotein reductase] + O2
11-hydroxycucurbitadienol + oxidized [nadph--hemoprotein reductase] + h2o + h(+) => cucurbitadienol + reduced [nadph--hemoprotein reductase] + o2