isatin + NADPH + H(+) <=> 3-hydroxyindolin-2-one + NADP(+)
isatin + nadph + h(+) <=> 3-hydroxyindolin-2-one + nadp(+)
isatin + NADPH + H(+) <=> 3-hydroxyindolin-2-one + NADP(+)
isatin + nadph + h(+) <=> 3-hydroxyindolin-2-one + nadp(+)