Diethyl Ether → HCID 58213693, compound

Participants

Reaction Steps

To a solution of ethyl 4-(2-(5-amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)benzoate (from Example 70) (1.0 eq.) in DCM at 0° C. was added 3.0 M methyl magnesium iodide (10 eq.) in ether and warmed to room temperature overnight. The reaction was cooled to 0° C. and quenched with 1N HCl aqueous solution and ether. After stirring for 15 minutes, the reaction mixture was neutralized with saturated aqueous sodium bicarbonate solution. The two phases were separated, and the aqueous layer was extracted with ether. The combined organic layers were washed with brine, dried over anhydrous MgSO4, and concentrated en vacuo. The crude material was purified by RP-HPLC using a 10-50% MeCN in water gradient followed by extraction in DCM to give 2-(4-(2-(5-amino-8 methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl)propan-2-ol. 1H NMR (Acetone-d6): δ 8.73 (m, 2H), 8.22 (d, 1H), 7.40-7.44 (m, 3H), 7.20 (d, 2H), 7.12 (d, 1H), 6.5 (br, 2H), 3.94 (s, 1H), 3.21 (t, 2H), 3.08 (t, 2H), 2.44 (s, 3H), 1.47 (s, 6H). LRMS [M+H]=372.2

Provenance & Evidence