Diisopropylethylamine → HCID 86612066, compound

Participants

Reaction Steps

To a solution of 4-({2-[(tert-butoxycarbonyl)amino]-2-methyl-3-phenylpropoxy}methyl)-6-[(methylsulfonyl)(propyl)amino]pyridine-2-carboxylic acid (10 mg, 0.019 mmol, intermediate VII) in DMF (0.5 mL) was added diisopropylethyl amine (0.05 mL, 0.028 mmol), [1-(4-fluorophenyl)ethyl]amine (0.008 mL, 0.056 mmol) and BOP reagent (10 mg, 0.022 mmol), and the reaction mixture was allowed to stand at rt for 40 min, purified by preparative HPLC (5->95% CH3CN/H2O, 0.1% added TFA, C18 PRO YMC 20×150 mm) to afford tert-butyl [1-benzyl-2-({2-({[1-(4-fluorophenyl)ethyl]amino}carbonyl)-6-[(methylsulfonyl)(propyl)amino]pyridin-4-yl}methoxy)-1-methylethyl]carbamate. Boc removal in HCl(g) saturated EtOAc and lyophilization from dioxane/water provided 4-[(2-amino-2-methyl-3-phenylpropoxy)methyl]-N-[1-(4-fluorophenyl)ethyl]-6-[(methylsulfonyl)(propyl)amino]pyridine-2-carboxamide as an hydrochloride white solid. 1H NMR (400 MHz, CD3OD) δ 8.61 (d, J=8.0 Hz, 1H), 7.97 (s, 1H), 7.65 (s, 1H), 7.46-7.41 (m, 2H), 7.38-7.25 (m, 3H), 7.24-7.19 (m, 2H), 7.11-7.03 (m, 2H), 5.30-5.20 (m, 1H), 4.75 (s, 2H), 4.03-3.94 (m, 2H), 3.51 (A of AB, d, J=10.4 Hz, 1H), 3.46 (B of AB, d, J=10.4 Hz, 1H), 3.11 (A of AB, d, J=13.6 Hz, 1H), 3.10 (s, 3H), 2.92 (B of AB, d, J=13.6 Hz, 1H), 1.64-1.54 (m, 2H), 1.62 (d, J=7.2 Hz, 3H), 1.29 (s, 3H), 0.92 (t, J=7.6 Hz, 3H). HRMS (ES, M+H) calcd. for C29H37FN4O4S: 557.2593, found: 557.2613.

Provenance & Evidence