Potassium Carbonate → (S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(1-methyl-3-(pyridin-4-yl)-1H-indazol-5-yl)benzo[d]thiazol-6-yl)acetate

Participants

Reaction Conditions

Reaction Steps

To a vial flushed with argon was added (S)-methyl 2-(2-bromo-7-(4-chlorophenyl)-5-methylbenzo[d]thiazol-6-yl)-2-tert-butoxyacetate (100 mg, 0.207 mmol), 1-methyl-3-(pyridin-4-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole (53 mg, 0.16 mmol), Pd(PPh3)4 (18 mg, 16 μmol), and K2CO3 (66 mg, 0.47 mmol). De-gassed dioxane (2 mL) and water (0.5 mL) were then added, and the reaction was heated to 100° C. for 1 h. After cooling to 23° C., the reaction was filtered over a plug of Celite, concentrated, and purified by column chromatography (gradient 0 to 75% EtOAc in hexanes) to give the product. 1H NMR (400 MHz, CDCl3) δ 8.77 (d, J=5.9 Hz, 2H), 8.64 (s, 1H), 8.17 (d, J=8.8 Hz, 1H), 7.94 (d, J=5.9 Hz, 2H), 7.89 (s, 1H), 7.61-7.39 (m, 5H), 5.21 (s, 1H), 4.18 (s, 3H), 3.75 (s, 3H), 2.60 (s, 3H), 0.99 (s, 9H).

Provenance & Evidence