1: 44 percent / pyridinr, 3percent aq. NaOH / 2 h / Heating 2: 1.) 1 M NaOH, EDTA, 2.) 0.4 M aq. HCl, NaBH3CN / 1.) CH3OH, 37 deg C, 30 min, 2.) CH3OH, ethanol, 5-10 deg C, 30 min View Scheme

sodium hydroxide in pyridine 2.5 h; Heating;