反应详情

The title compound was prepared from 4-(1,4-dioxa-8-azaspiro[4.5]dec-8-yl)-benzoic acid (which was obtained in Example 150) (0.53 g, 2 mmol) and (S)-leucinol (0.30 g, 2.5 mmol) according to the procedure shown for Example 154 to give 0.53 g of a white solid; m.p. 90–91° C.; MS (ES) m/z: 363.3 (MH+); HRMS (ES) Calcd. for C20H31N2O4 (MH+): 363.2278. Found: 363.2275.