Cesium carbonate → 2-(1-((5-(2-Methylbenzofuran-3-yl)-7-morpholinothiazolo[5,4-d]pyrimidin-2-yl)methyl)piperidin-4-yl)propan-2-ol

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-[1-(5-chloro-7-morpholin-4-ylthiazolo[5,4-d]pyrimidin-2-ylmethyl)-piperidin-4-yl]propan-2-ol (50 mg, 0.12 mmol), 2-methyl-3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)benzofuran (47 mg, 0.18 mmol), tetrakis(triphenylphosphine) palladium (14 mg, 0.01 mmol) and Cs2CO3 (80 mg, 0.24 mmol) in dioxane (3 mL) and H2O (1.5 mL) was purged with argon then heated at 140° C. for 30 min in a microwave reactor. The reaction mixture was loaded onto an Isolute® SCX-2 cartridge which was washed with DCM/MeOH and the product eluted with 2M NH3/MeOH. The resulting residue was purified by column chromatography (Si—PCC, EtOAc:cyclohexane, 0-90%) to afford 210 as a white solid (29 mg, 48%). LCMS (Method G): RT 10.16 min, [M+H]+ 508.4. 1H NMR (CDCl3, 400 MHz): δ 8.40-8.37 (m, 1 H); 7.45-7.40 (m, 1 H); 7.32-7.24 (m, 2 H); 4.40 (m, 4 H); 3.94-3.84 (m, 6 H); 3.11 (m, 2 H); 2.92 (s, 3 H); 2.21 (m, 2 H); 1.78 (m, 2 H); 1.48 (m, 2 H) and 1.21 (m, 7 H)

Provenance & Evidence