D-Psicose → HCID 71114238, compound

Participants

Reaction Steps

Following the general procedure-1, Tert-butyl 4-{2-[4-(trifluoromethyl)phenyl]benzo[d]oxazol-5-yl}-5,6-dihydropyridine-1(2H)-carboxylate (90 mg) obtained from intermediate 44 (200 mg, 0.51 mmol) and Tert-butyl 4-(trifluoromethylsulfonyloxy)-5,6-dihydropyridine-1(2H)-carboxylate (170 mg, 0.511 mmol). Tert-butyl 4-{2-[4-(trifluoromethyl)phenyl]benzo[d]oxazol-5-yl}-5,6-dihydropyridine-1(2H)-carboxylate (90 mg, 0.2 mmol) dissolved in MeOH (30 ml) and added Pd/C (90 mg). This mixture was stirred in an auto clave in hydrogen atmosphere at 55 Psi for 12 h. Reaction mixture filtered through celite and washed the cetile with MeOH. Methanol was removed on rotavapour to obtain the crude. Crude was triturated with Petether and EtOAc (1:1) to obtain the titled compound (50 mg) as an off-white solid. M.P.: 161-164° C. 1H-NMR (δ ppm, 400 MHz): 8.36 (d, J 8.2, 2H), 7.78 (d, J 8.4, 2H), 7.63 (d, J 1.5, 1H), 7.53 (d, J 8.4, 1H), 7.26-7.20 (m, 1H), 4.34-4.20 (m, 2H), 2.90-2.75 (m, 3H), 1.93-1.84 (m, 2H), 1.74-1.62 (m, 2H), 1.49 (s, 9H).

Provenance & Evidence