Diisopropylethylamine → HCID 86723631, compound

Participants

Reaction Steps

To a solution of (S)-1-(4-(5-cyclopropyl-1H-pyrazol-3-ylamino)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-2-yl)-2-methylpyrrolidine-2-carboxylic acid (1.1 g, 2.99 mmol) in DMF (12 mL) was added 6-fluoropyridin-3-amine (1.7 g, 15.18 mmol), diisopropylethylamine (0.578 g, 4.48 mmol) and HBTU (1.13 g, 2.99 mmol) and the reaction mixture was stirred at RT for 16 h. The reaction mixture was diluted with water (200 mL) and extracted with EtOAc (3×100 mL). The combined organic layer was washed with water (9×200 mL) and dried over anhydrous sodium sulfate. Removal of solvent under reduced pressure gave a crude product which was purified by reverse phase HPLC to afford 50 mg of (S)-1-(4-(5-cyclopropyl-1H-pyrazol-3-ylamino)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-2-yl)-N-(6-fluoropyridin-3-yl)-2-methylpyrrolidine-2-carboxamide. 1H NMR (400 MHz, CD3OD, TFA salt) δ (ppm): 0.70-0.80 (m, 2H), 0.89-0.99 (m, 2H), 1.77-1.83 (m, 1H), 1.80 (s, 3H), 2.16-2.30 (m, 5H), 2.38-2.43 (m, 1H), 2.77-2.83 (m, 2H), 2.98-3.05 (m, 2H), 3.78-3.82 (m, 1H), 3.88-3.98 (m, 1H), 6.02 (s, 1H), 6.99 (d, 1H), 7.82-7.90 (m, 1H), 8.18 (s, 1H). The other enantiomer was prepared using the (R) chiral starting material.

Provenance & Evidence