Cesium carbonate → morpholine-4-carboxylic acid (4-{[3-(2-methyl-2H-indazol-6-ylcarbamoyl)-pyridin-2-ylamino]-methyl}-pyridin-2-yl)-amide

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-[(2-chloro-pyridin-4-ylmethyl)-amino]-N-(2-methyl-2H-indazol-6-yl)-nicotinamide (200 mg, 0.51 mmol), Pd2 dba3 (5.2 mg, 0.0051 mmol), xantphos (9.1 mg, 0.0153 mmol), cesium carbonate (169 mg, 0.54 mmol) and morpholine-4-carboxylic acid amide (332 mg, 2.55 mmol) in dioxane (12.1 mL) and DMF (4.1 mL) under nitrogen, was stirred at 110° C. for 11 hours. A second reaction was performed in duplicate. The two reactions were combined, diluted with dilute aqueous sodium hydrogencarbonate solution and extracted with EtOAc. The combined organic layers were washed with brine, dried and concentrated in vacuo. Purification was achieved by chromatography on Isolute® flash silica gel (Separtis) to give morpholine-4-carboxylic acid (4-{[3-(2-methyl-2H-indazol-6-ylcarbamoyl)-pyridin-2-ylamino]-methyl}-pyridin-2-yl)-amide (119 mg) which was further purified by recrystallisation from EtOAc; 1H-NMR (300 MHz, d6-DMSO) 10.2 (1H, s), 9.06 (1H, s), 8.45 (1H, t), 8.22 (1H, s), 8.03-8.13 (4H, m), 7.73 (1H, s), 7.62 (1H, d), 7.27 (1H, unresolved dd), 6.89 (1H, unresolved dd), 6.67 (1H, dd), 4.62 (2H, d), 4.10 (3H, s), 3.52 (4H, t), 3.39 (4H, t).

Provenance & Evidence