반응 #88653
ord-291b81896417482899e1561d2719602a
반응 방정식
반응물
시약
반응 조건
후처리
- 1기타the cooling bath/reaction
- 2기타The volatile were evaporated
- 3건조the crude residue was further dried on high vacuum
- 4기타The product was isolated by preparative reverse phase hplc (Gilson)
실험 절차
To a mixture of (3R,4R)-1-(2-hydroxy-ethyl)-4-{3-methoxy-4-[7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-ylamino]-phenyl}-piperidin-3-ol (Example 16b; 40.00 mg, 0.082 mmol) and triethylamine (12 uL, 0.09 mmol) in methylene chloride (0.400 mL, 6.24 mmol) was added 4-bromo-benzoyl chloride, (19 mg, 0.086 mmol) at 0° C. The reaction was stirred overnight allowing the cooling bath/reaction to slowly warm to room temperature. The volatile were evaporated and the crude residue was further dried on high vacuum, The product was isolated by preparative reverse phase hplc (Gilson) and the free base was released by using a strong cation exchange resin column (Strata, from Phenomenex) to give 33 mg (60% yield) of 4-bromo-benzoic acid 2-((3R,4R)-3-hydroxy-4-{3-methoxy-4-[7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-ylamino]-phenyl}-piperidin-1-yl)-ethyl ester. 1H NMR (CDCl3): 8.70 (br s, 1H), 8.35 (d, J=8.1 Hz, 1H), 7.96 (d, J=7.6 Hz, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.60 (d, J=8.4 Hz, 2H), 7.47 (br s, 1H), 7.46-7.40 (m, 1H), 7.12 (app t, J=7.5 Hz, 1H), 7.07 (d, J=8.3 Hz, 1H), 7.02 (d, J=4.7 Hz, 1H), 6.85 (d, J=4.7 Hz, 1H), 6.78 (d, J=8.7 Hz, 1H), 6.76 (br s, 1H), 4.50 (app t, J=5.8 Hz, 2H), 3.89 (s, 3H), 3.84 (s, 3H), 3.80 (m, 1H), 3.31 (m, 1H), 3.04 (br d, J=11.3 Hz, 1H), 2.90 (app t, J=5.8 Hz, 2H), 2.35 (m, 1H), 2.26 (m, 1H), 2.15 (app t, J=10.2 Hz, 1H), 1.86 (m, 2H), 1.67 (br s, 1H).