Acetonitrile → (2S)-4,4-difluoro-1-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydroimidazo[1,2-d]pyrido[3,4-f][1,4]oxazepin-9-yl)pyrrolidine-2-carboxamide

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Following the procedures of Example 339, 2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-ol from Example 93 and 4,4-difluoro-L-prolinamide hydrochloride with added DIPEA (2.2 eq.) were reacted and the crude product subjected to RPHPLC (C18 column, gradient 5 to 95% acetonitrile in water+0.1% HCO2H) then recrystallisation from IMS to give 381 as a white solid (24 mg, 11%). LCMS: RT=3.21 min, [M+H]+=445. 1H NMR 400 MHz (DMSO-d6) δ: 9.11 (1 H, s), 7.90 (1 H, d, J=0.64 Hz), 7.87 (1 H, s), 7.53 (1 H, br), 7.14 (1 H, br), 6.08 (1 H, s), 5.99-5.91 (1 H, m), 4.61 (1 H, dd, J=9.53, 4.24 Hz), 4.58-4.49 (4 H, m), 4.00-3.98 (2 H, m), 2.91-2.90 (1 H, m), 2.45 (1 H, dd, J=13.51, 4.18 Hz), 1.49 (6 H, dd, J=6.59, 3.35 Hz)

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