sophoradiol + reduced [NADPH--hemoprotein reductase] + O2 <=> soyasapogenol B + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)
sophoradiol + reduced [nadph--hemoprotein reductase] + o2 <=> soyasapogenol b + oxidized [nadph--hemoprotein reductase] + h2o + h(+)