Diisopropylethylamine → HCID 44137940, Verbindung

A suspension of 8-fluoro-5-(2-fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyridine-6-carboxylic acid (100 mg, 0.23 mmol), HATU (130 mg, 0.34 mmol), DIPEA (0.06 mL, 0.34 mmol) and (S)-2-hydroxy-propoxy-amide hydrochloride (44 mg, 0.34 mmol) in THF (1 mL) was stirred at room temperature for 18 hours. The reaction mixture was partitioned between ethyl acetate (5 mL) and 1M HCl, the organic layer was isolated and washed with saturated aqueous NaHCO3 (2×5 mL) and brine (2×5 mL), dried over Na2SO4, filtered and concentrated in vacuo. The resultant residue was subjected to reverse-phase preparative HPLC (Gemini 5 micron C18 250×21.20 mm column, 0.1% formic acid, gradient acetonitrile/water, 5 to 98%, ramp time 20 minutes) to afford the title compound as a yellow solid (13 mg, 8%). LCMS (method A): RT=8.13 min, [M+H]+=489. 1H NMR (DMSO-d6): 11.51 (1 H, broad), 8.95 (1 H, broad), 8.25 (1 H, s), 7.60 (1 H, s), 7.55 (1 H, d, J=10.7 Hz), 7.27 (1 H, d, J=8.4 Hz), 6.82 (1 H, d, J=11.1 Hz), 6.32 (1 H, t, J=8.8 Hz), 4.66 (1 H, broad), 3.64 (1 H, m), 3.43 (2 H, d, J=5.8 Hz), 0.94 (3 H, d, J=6.3 Hz).

1. customThe reaction mixture was partitioned between ethyl acetate (5 mL) and 1M HCl
2. customthe organic layer was isolated
3. washwashed with saturated aqueous NaHCO3 (2×5 mL) and brine (2×5 mL)
4. dry with materialdried over Na2SO4
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customwas subjected to reverse-phase preparative HPLC (Gemini 5 micron C18 250×21.20 mm column, 0.1% formic acid, gradient acetonitrile/water, 5 to 98%, ramp time 20 minutes)

ORD-Eintrag

ord-b99f68a229f341349cb9f9891c3dc97a

Quelldatensatz

uspto-grants-2015_12

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09206174B2