1-Amino-2-propanol → 4-(2-fluoro-4-iodoanilino)-N-(2-hydroxypropyl)-1-methyl-6-oxo-1,6-dihydro-3-pyridinecarboxamide

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Reaction Steps

4-(2-Fluoro-4-iodoanilino)-1-methyl-6-oxo-1,6-dihydro-3-pyridinecarboxylic acid and CDI were dissolved in anhydrous THF/DMF (4:1) and treated with 1-amino-2-propanol as for example 34. After workup, the residue was triturated with hexane then dried, affording 4-(2-fluoro-4-iodoanilino)-N-(2-hydroxypropyl)-1-methyl-6-oxo-1,6-dihydro-3-pyridinecarboxamide (36%) as a white solid; m.p. (EtOAc/Hexane) 161-166° C. (glue-liquid). 1H NMR [400 MHz, (CD3)2CO] δ 10.13 (br s, 1H), 8.31 (t, J=1.7 Hz, 1H), 7.73 (br s, 1H), 7.66-7.58 (m, 2H), 7.37-7.31 (m, 1H), 5.75 (dd, J=5.2, 0.9 Hz, 1H), 3.96-3.88 (m, 1H), 3.46-3.39 (m, 1H), 3.42 (s, 3H), 3.25-3.17 (m, 1H), 1.15 (d, J=6.2 Hz, 3H). HRMS (FAB+) calcd for C16H18FIN3O3 446.0377 (M+), found 446.0371. HPLC 96.8% (254 nm).

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