2-(1-((7-Morpholino-5-(tributylstannyl)thiazolo[5,4-d]pyrimidin-2-yl)methyl)piperidin-4-yl)propan-2-ol → 2-(1-((5-(1H-indazol-3-yl)-7-morpholinothiazolo[5,4-d]pyrimidin-2-yl)methyl)piperidin-4-yl)propan-2-ol

Participants

Reaction Steps

A mixture of 2-(1-((7-morpholino-5-(tributylstannyl)thiazolo[5,4-d]pyrimidin-2-yl)methyl)piperidin-4-yl)propan-2-ol (0.211 g, 0.32 mmol), 3-iodo-1H-indazole (0.116 g, 0.48 mmol), copper(I) 2-thiophene carboxylate (0.012 g, 0.064 mmol) and Pd(PPh3)4 (0.037 g, 0.032 mmol) in dioxane (3 mL)was subjected to microwave irradiation at 150° C. for 90 min. The reaction mixture was loaded onto an Isolute® SCX-2 cartridge. The cartridge was washed with MeOH and the desired product was eluted using 2 M NH3 in MeOH. The eluent was concentrated in vacuo and the resultant residue was purified by flash chromatography (Si—PPC, MeOH:DCM, gradient 0:100 to 10:90) to give 209 as a yellow solid (0.043 g, 28%). LCMS (Method G): RT=7.71 min, [M+H]+ 494.3. 1H NMR (400 MHz, DMSO-d6): δ 13.45 (s, 1 H); 8.48 (d, J=8.3 Hz, 1 H); 7.61 (d, J=8.3 Hz, 1 H); 7.41 (t, J=7.6 Hz, 1 H); 7.26 (t, J=7.6 Hz, 1 H); 4.37 (m, 4 H); 3.88 (s, 2 H); 3.82 (t, J=4.6 Hz, 4 H); 3.02 (d, J=11.0 Hz, 2 H); 2.12 (t, J=11.0 Hz, 2 H); 1.74-1.69 (m, 2 H); 1.36-1.28 (m, 2 H); 1.26-1.23 (m, 2 H); 1.06 (s, 6 H)

Provenance & Evidence