反应详情

A solution of azetidine-3-carboxylic acid methyl ester (40 mg, 0.355 mmol) and diethyl-{4-[3-((S)-3-ethyl-5-methyl-4-oxiranylmethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-6-methyl-pyridin-2-yl}-amine (300 mg, 0.71 mmol, Example 18 step a)) in methanol (5 mL) and triethylamine (0.1 mL) is stirred at 60° C. for 2 days. The mixture is dissolved with EA and washed with sat. aq. NaHCO3-solution. The org. extract is collected and concentrated. The crude product is purified by prep. HPLC to give the title compound (60 mg) as pale yellow oil; LC-MS: tR=0.79 min; [M+1]+=538.04; 1H NMR (CDCl3): δ 1.25 (t, J=6.8 Hz, 6H), 1.32 (t, J=7.5 Hz, 3H), 2.40 (s, 3H), 2.50 (s, 3H), 2.71-2.80 (m, 4H), 3.06 (s br, 1H), 3.35-3.46 (m, 2H), 3.48-3.54 (m, 2H), 3.58-3.72 (m, 6H), 3.75 (s, 3H), 3.81-3.86 (m, 2H), 3.93-4.00 (m, 1H), 7.01 (s, 1H), 7.10 (s, 1H), 7.87 (s, 1H), 7.88 (s, 1H).

1. washwashed with sat. aq. NaHCO3-solution
2. extractionextract
3. customis collected
4. concentrationconcentrated
5. customThe crude product is purified by prep