4-(6-Chloro-5-methoxy-pyrimidin-4-yloxy)-piperidine-1-carboxylic acid 1-ethyl-propyl ester, (0.50 g, 1.40 mmol) and 6-methanesulfonyl-2-methyl-pyridin-3-ylamine (0.26 g, 1.40 mmol) and palladium acetate (0.062 g, 0.28 mmol) and 2,8,9-triisobutyl-2,5,8,9-tetraaza-1-phospha-bicyclo[3.3.3]undecane (0.191 g, 0.559 mmol) were combined in 50 mL dioxane, purged with nitrogen and a 1M solution of potassium t-butoxide in THF (2.79 mL, 2.79 mmol) added dropwise. The reaction was heated to 100° C. and stirred for 2 hours, then was filtered, concentrated, acidified and purified by prep HPLC, the desired fractions partitioned between saturated sodium hydrogen carbonate and ethyl acetate, the organic phase washed with brine and dried with magnesium sulfate to yield (15 mg, 0.029 mmol, 2.11% yield) desired product, as a white solid. 1HNMR (CDCl3, 400 MHz) δ 0.91 (t, J=7.33 Hz, 6H), 1.54-1.64 (m, 4H), 1.77-1.87 (m, 2H), 1.99-2.08 (m, 2H), 2.65 (s, 3H), 3.19 (s, 3H), 3.39-3.46 (m, 2H), 3.78-3.85 (m, 2H), 4.00 (s, 3H), 4.67 (pent, J=6.32 Hz, 1H), 5.36-5.43 (hept, J=3.79 Hz, 1H), 7.31 (bs, 1H), 7.96 (d, J=8.34 Hz, 1H), 8.20 (s, 1H), 9.02 (d, J=8.59 Hz, 1H). Exact mass calculated for C23H33N5O6S: 507.22 found: 508.5 (MH+).
