Reacción #433784

Ecuación de reacción

2-Furoyl chloride

Compound 28

1,6-Dimethyl-2-oxo-4-(piperazin-1-yl)-1,2-dihydro-quinolin-3-carbonitrile

→

white solids

Rendimiento 59.0%

4-[4-(Furan-2-carbonyl)-piperazin-1-yl]-1,6-dimethyl-2-oxo-1,2-dihydro-quinolin-3-carbonitrile

Rendimiento 59.0%

Disolventes

pyridine

Condiciones de reacción

Tratamiento posterior

1. 1
   Otroto come to room temperature
2. 2
   Otrothe solids formed
3. 3
   Filtraciónwere filtered
4. 4
   LavadoThe solids were washed by excess water
5. 5
   Otrodried
6. 6
   Otrorecrystallized by ethyl acetate

Procedimiento

2-Furoyl chloride (148 μL, 1.5 mmol) was added to a stirred solution of Compound 28 (282 mg, 1.0 mmol) in pyridine (5 mL) under argon at 0° C. The solution was allowed to come to room temperature and further stirred overnight. The solution was poured into ice water and the solids formed were filtered. The solids were washed by excess water, dried, and recrystallized by ethyl acetate to yield 221 mg (59%) of white solids. M.P. 231° C. 1H NMR (DMSO-d6): δ 2.41 (s, 3H), 3.56 (s, 3H), 3.63 (m, 4H), 3.95 (m, 4H), 6.66 (dd, J=1.5, 3.6 Hz, 1H), 7.08 (d, J=3.4 Hz, 1H), 7.48 (d, J=8.7 Hz, 1H), 7.59 (dd, J=1.2, 8.8 Hz, 1H), 7.69 (s, 1H), 7.88 (s, 1H). EIMS m/z 399 (M+23). Anal. (C21H20N4O3) C, H, N.

Fuente