Hydrochloric Acid → HCID 57820056, compound

Participants

Reaction Steps

(E)-[2-(3-{4-[1-(2-Morpholin-4-yl-ethylamino)-1-(4-trifluoromethyl-phenylcarbamoyl)-ethyl]-phenyl}-acryloylamino)-phenyl]-carbamic acid tert-butyl ester (crude material from Example 24) was treated with 1.25M HCl in methanol (2.8 mL) at room temperature for 2 hours. The reaction was quenched slowly with solid sodium bicarbonate until the pH was 6-7. The mixture was diluted in acetonitrile with a small amount of dimethylsulfoxide, passed through a 40 μm pipette filter, and then purified by preparative HPLC to obtain the desired product (35 mg, 13%). MS: calc'd 582 (MH+), exp 582 (MH+). 1H NMR (d6-DMSO, 400 MHz) δ 10.5 (broad s, 1H), 9.39 (s, 1H), 7.88 (d, 2H, J=8.8 Hz), 7.68 (d, 2H, J=8.8 Hz), 7.62 (d, 2H, J=8.4 Hz), 7.57 (d, 2H, J=8.4 Hz), 7.54 (d, 1H, J=15.6 Hz), 7.35 (d, 1H, J=7.6 Hz), 6.92 (t, 1H, J=7.6 Hz), 6.90 (d, 1H, J=15.6 Hz), 6.75 (dd, 1H, J=8.0 Hz, 1.2 Hz), 6.57 (td, 1H, J=8.0 Hz, 1.2 Hz), 4.93 (s, 2H), 3.53 (m, 4H), 3.33 (m, 2H, overlapped with DMSO solvent residual peak), 2.55 (m, 2H), 2.30 (m, 4H), 1.65 (s, 3H).

Provenance & Evidence