Reacción #309205

Ecuación de reacción

CH2Cl2

2-[6-({3-chloro-4-[(3-fluorobenzyl)oxy]phenyl}amino)-4,5-dihydro-3H-pyrimido[5′,4′:4,5]thieno[2,3-e]indazol-3-yl]ethanol

thionyl bromide

→

final product

Rendimiento 62.0%

3-(2-bromoethyl)-N-{3-chloro-4-[(3-fluorobenzyl)oxy]phenyl}-4,5-dihydro-3H-pyrimido[5′,4′:4,5]thieno[2,3-e]indazol-6-amine

Rendimiento 62.0%

Disolventes

H2O

Condiciones de reacción

Tratamiento posterior

1. 1
   workup.STIRRINGAfter 4 h stirring at rt
2. 2
   OtroThe layers were separated
3. 3
   Extracciónthe aqueous layer extracted with CH2Cl2 (3×10 mL)
4. 4
   SecadoThe combined organic layers were dried over MgSO4
5. 5
   Filtraciónfiltered
6. 6
   Concentraciónconcentrated in vacuo
7. 7
   OtroThe crude product was triturated from methanol

Procedimiento

To 10 mL CH2Cl2 cooled to 0° C. was added 2-[6-({3-chloro-4-[(3-fluorobenzyl)oxy]phenyl}amino)-4,5-dihydro-3H-pyrimido[5′,4′:4,5]thieno[2,3-e]indazol-3-yl]ethanol (295 mg, 0.57 mmol) followed by thionyl bromide (0.11 mL, 1.41 mmol), and the contents allowed to stir with warming to rt. After 4 h stirring at rt, the contents were diluted with H2O (10 mL). The layers were separated and the aqueous layer extracted with CH2Cl2 (3×10 mL). The combined organic layers were dried over MgSO4, filtered, and concentrated in vacuo. The crude product was triturated from methanol to afford the final product (205 mg, 62%) as an off-white solid. 1H-NMR (DMSO-d6) δ 3.09 (t, 2H), 3.39 (t, 2H), 3.85 (m, 2H), 4.52 (m, 2H), 5.24 (s, 2H), 7.14-7.34 (m, 4H), 7.40-7.53 (m, 2H), 7.75 (s, 1H), 7.79 (d, 1H), 8.35 (s, 1H), 8.40 (s, 1H); LCMS RT=3.82 min; [M+H]+=584.0, 586.0.

Fuente