1: 89 percent / 1 M LiOH / ethanol / 2 h 2: 1-ethyl-3-<3-(dimethylamino)propyl>carbodiimide hydrochloride (EDCI) / dimethylformamide / 12 h / Ambient temperature 3: HCl(g) / 2 h / 0 - 20 °C 4: ammonia / ethanol / 8 h / Ambient temperature 5: H2 / 10percent Pd/C / methanol / 4 h / 2280 Torr / Ambient temperature 6: formic acid / 12 h / Ambient temperature View Scheme