17-dehydrostemmadenine + NADP(+) = 3,17-didehydrostemmadenine + NADPH
17-dehydrostemmadenine + nadp(+) = 3,17-didehydrostemmadenine + nadph
"3,17-didehydrostemmadenine reductase"
"3,17-didehydrostemmadenine reductase"