1,2-Dichloroethane → N-[(1S)-2,2-dimethyl-1-({(1S,4S)-5-[(5-phenyl-2-pyridinyl)carbonyl]-2,5-diazabicyclo[2.2.1]hept-2-yl}carbonyl)propyl]-1H-indole-2-carboxamide

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Reaction Steps

To a 10 ml vial was added N-{(1S)-1-[(1S,4S)-2,5-diazabicyclo[2.2.1]hept-2-ylcarbonyl]-2,2-dimethylpropyl}-1H-indole-2-carboxamide (100 mg, 0.268 mmol), EDC (128 mg, 0.670 mmol), HOBt (41.0 mg, 0.268 mmol), 5-phenyl-2-pyridinecarboxylic acid (64.1 mg, 0.322 mmol), CH2Cl2 (2.8 ml) and DIEA (0.187 ml, 1.072 mmol). The mixture was stirred at room temperature for 4 h, then diluted with sat. Na2CO3. The organic layer was passed over a phase separator and concentrated and purified by reverse phase HPLC: 30×75 mm sunfire column 50 ml/min, 0.1% TFA, 20-60% ACN/Water over 14 min. The fractions containing the product were combined and diluted with CH2Cl2 and sat. NaHCO3. The layers were separated and the resulting aqueous layer was extracted three times with CH2Cl2. The combined CH2Cl2 extracts were combined, dried and concentrated to afford the desired product (123 mg, 0.227 mmol) as an off white solid. LCMS (m/z): 536.2 (M+H). 1H NMR (400 MHz, DMSO-d6) δ ppm 0.99 (s, 1H), 1.05 (s, 2H), 1.07 (s, 2H), 1.10 (s, 4H), 1.73-2.09 (m, 2H), 3.37-4.07 (m, 4H), 4.45-5.27 (m, 3H), 6.90-7.25 (m, 2H), 7.26-7.96 (m, 9H), 8.03-8.38 (m, 2H), 8.42-9.10 (m, 1H), 11.55-11.83 (m, 1H)

Provenance & Evidence