Diisopropylethylamine → 5-Chloro-N-{4-[(3R)-3-dimethylaminopyrrolidin-1-yl]-2-methoxy-5-nitrophenyl}-4-(1H-indol-3-yl)pyrimidin-2-amine

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

(R)-(+)-3-(Dimethylamino)pyrrolidine (0.111 mL, 0.87 mmol) was added to a suspension of 5-chloro-N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-(1H-indol-3-yl)pyrimidin-2-amine (Intermediate 76, 300 mg, 0.73 mmol) and DIPEA (0.151 mL, 0.87 mmol) in DMA (3 mL) and the mixture was heated at 140° C. in a microwave for 0.5 h. The mixture was then diluted with CH3OH and absorbed onto an SCX column. The column was washed with CH3OH and eluted with 1:1 methanolic ammonia in CH2Cl2. Appropriate fractions were concentrated and further purification by FCC, eluting with 1.5% 7N methanolic ammonia in CH2Cl2 gave the title compound (353 mg, 96%) as an orange foam; 1H NMR: 1.78-1.91 (1H, m), 2.16-2.27 (7H, m), 2.70-2.85 (1H, m), 3.12-3.29 (3H, m), 3.41-3.55 (1H, m), 3.89 (3H, s), 6.57 (1H, s), 6.95 (1H, t), 7.17 (1H, t), 7.46 (1H, d), 8.09 (1H, s), 8.24 (1H, br s), 8.37 (1H, s), 8.50 (1H, d), 8.54 (1H, s), 11.88 (1H, s); m/z: ES+ MH+ 508.5.

Herkunft & Nachweise