Hydrochloric Acid → Tunlametinib

反応式

[F:1][C:2]1[C:7]2[N:8]=[CH:9][S:10][C:6]=2[CH:5]=[C:4]([C:11]([NH:13][O:14][CH2:15][CH2:16][O:17]C=C)=[O:12])[C:3]=1[NH:20][C:21]1[CH:26]=[CH:25][C:24]([I:27])=[CH:23][C:22]=1[F:28].Cl.C([O-])(O)=O.[Na+]>C(Cl)Cl>[F:1][C:2]1[C:7]2[N:8]=[CH:9][S:10][C:6]=2[CH:5]=[C:4]([C:11]([NH:13][O:14][CH2:15][CH2:16][OH:17])=[O:12])[C:3]=1[NH:20][C:21]1[CH:26]=[CH:25][C:24]([I:27])=[CH:23][C:22]=1[F:28]

参加物

実験手順

To a solution of 4-fluoro-5-((2-fluoro-4-iodophenyl)amino)-N-(2-(vinyloxy)ethoxy)benzo[d]thiazole-6-carboxamide (492 mg, 1.00 mmol) in CH2Cl2 (10 mL) was added 1.0 N HCl (aq., 5 mL, 5 mmol). After stirring for 1 h, the reaction mixture was neutralized with saturated NaHCO3 (aq.). The aqueous layer was washed with CH2Cl2 (30 mL). The combined organic layer was washed with water (30 mL×2) and brine (30 mL), dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified by column chromatography on silica gel (CH2Cl2/MeOH, 50:1, v/v) and gave the desired product as a white solid (446 mg, 75.9% yield for the two steps). 1H NMR (400 MHz, DMSO-d6): δ 11.80 (s, 1H), 9.55 (s, 1H), 8.22 (s, 1H), 8.12 (s, 1H), 7.55 (d, J=11.0 Hz, 1H), 7.31 (d, J=8.5 Hz, 1H), 6.48 (d, J=9.2 Hz, 1H), 4.72 (s, 1H), 3.84 (m, 2H), 3.57 (m, 2H). MS APCI (+) m/z: 491.8, [M+H].