1: Reduced nicotinamide-adenine dinucleotide; NADPH; aldo-ketoreductase KRED-243 / aq. phosphate buffer / 26 h / 30 °C / pH 7 / |Enzymatic reaction 2: diisobutylaluminium hydride 3: palladium 10 on activated carbon; hydrogen; formic acid / 10 h / 20 °C / 1500.15 Torr / |Inert atmosphere View Scheme