Aniline → 4-(3-Dimethylamino-phenylamino)-pyrrolo[2,3-d]pyrimidine-7-carboxylic acid {2-methyl-5-[3-(4-methyl-imidazol-1-yl)-5-trifluoromethyl-benzoylamino]-phenyl}-amide

Participants

Reaction Conditions

Reaction Steps

4-Chloro-pyrrolo[2,3-d]pyrimidine-7-carboxylic acid {2-methyl-5-[3-(4-methyl-imidazol-1-yl)-5-trifluoromethyl-benzoylamino]-phenyl}-amide resin (50 mg, 0.05 mmol), prepared as in reference 3, in n-butanol (2 mL) is mixed with N,N-dimethyl-1,3-phenylenediamine dihydrochloride (52.3 mg, 0.25 mmol) or mixed with acetyl chloride (17.8 μL, 0.25 mmol) and aniline and shaken at 80° C. for 24 hours. The resulting mixture is filtered and the resin is treated with TFA/CH2Cl2/H2O (45/50/5) (600 μL) for 30 minutes before filtering and washing with CH2Cl2 (3×2 mL), MeOH (3×2 mL). The washes are then combined together and concentrated. The residue is purified by preparative HPLC-MS to give 4-(3-dimethylamino-phenylamino)-pyrrolo[2,3-d]pyrimidine-7-carboxylic acid {2-methyl-5-[3-(4-methyl-imidazol-1-yl)-5-trifluoromethyl-benzoylamino]-phenyl}-amide (23.2 mg, yield 71%); 1H NMR (400 MHz, DMSO-d6) δ 11.60 (s, 1H), 10.65 (s, 1H), 9.68 (s, 1H), 9.61 (s, 1H), 8.60 (s, 1H), 8.54 (s, 1H), 8.53 (s, 1H), 8.46 (s, 1H), 8.41 (s, 1H), 8.16 (s, 1H), 7.82 (d, J=3.9 Hz, 1H), 7.60 (d, J=8.2 Hz, 1H), 7.32 (d, J=3.6 Hz, 1H), 6.54 (d, J=8.4 Hz, 1H), 2.92 (s, 6H), 2.45 (s, 3H), 2.35 (s, 3H); ESIMS m/z 654.2 (M++1).

Provenance & Evidence