Water → tert-butyl 3-({6-chloro-5-(2-hydroxyethyl)-2-[(3S)-3-methylmorpholin-4-yl]pyrimidin-4-yl}amino)azetidine-1-carboxylate

Participants

Reaction Conditions

Reaction Steps

A solution of 2-{4,6-dichloro-2-[(3S)-3-methylmorpholin-4-yl]pyrimidin-5-yl}ethanol (as prepared in Preparation 2)(0.652 g, 2.23 mmol) and 3-amino-azetidine-1-carboxylic acid tert-butyl ester (0.5 g, 2.9 mmol) in DMSO (10.0 mL) was treated with DIPEA (0.7 mL, 4 mmol) and heated at 75° C. for 5 days in a sealed tube. The mixture was poured into a flask containing water and the resulting solids were collected by filtration and rinsed with water. The solids were taken up in DCM, dried over MgSO4 and filtered. The filtrate was purified directly by silica gel chromatography using a gradient of 25-100% EtOAc/heptane as eluent to give 0.823 g (86%) of the title compound as a crisp foam. 1H NMR (400 MHz, DMSO-d6) δ 7.30 (d, J=5.6 Hz, 1 H), 4.71 (t, J=5.2 Hz, 1 H), 4.62-4.53 (m, 1 H), 4.47-4.40 (m, 1 H), 4.13-4.04 (m, 3 H), 3.89-3.78 (m, 3 H), 3.66 (d, J=11.4 Hz, 1 H), 3.55-3.44 (m, 3 H), 3.36 (dt, J=11.7, 2.9 Hz, 1 H), 3.04 (dt, J=12.9, 3.7 Hz, 1 H), 2.69 (t, J=6.9 Hz, 2 H), 1.39 (s, 9 H), 1.14 (d, J=6.7 Hz, 3 H).

Provenance & Evidence