label: 3,17-didehydrostemmadenine + NADPH + H2O <=> (16R)-deshydroxymethyl-stemmadenine + formate + NADP(+)
label_lc: 3,17-didehydrostemmadenine + nadph + h2o <=> (16r)-deshydroxymethyl-stemmadenine + formate + nadp(+)