Synthesis of an Ethyl 6-Amino-3, 5-difluorosalicylate Derivative by Sequential Regioselective Directed ortho-Metalation, A Practical Synthesis of4, 5-Diamino-3, 6, 8- …
... h )l\c[F NHR 83% NHPW 1481 R = H_ pivaloyl chloride 15 14b: R = P|v pyrigine ... pivaloylamin0- 2-Ktetrahydropyran-2-yl)oxy)]- 4-(trimethylsilyl)benZ0ate (13): To a solution of 12 (107 g ... SYNTHESIS 1449 H20 was added, and the mixture was warmed to rt and extracted with EtOAc ...