Reacción #67879

ord-8f5710e49fab499ba4436d27471f746e

Ecuación de reacción

Cl
Hydrochloric acid
O=C(O)c1ccncc1F
3-Fluoro-isonicotinic acid
Nc1ccc(SC(F)(F)F)cc1
4-(trifluoromethylthio)aniline
C[Si](C)(C)[N-][Si](C)(C)C.[Li+]
LiHMDS
O=C(O)c1ccncc1Nc1ccc(SC(F)(F)F)cc1
desired product
Rendimiento 10.0%
O=C(O)c1ccncc1Nc1ccc(SC(F)(F)F)cc1
3-(4-Trifluoromethylsulfanyl-phenylamino)-isonicotinic acid
Rendimiento 10.0%

Disolventes

Condiciones de reacción

Temperatura
-78°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturato warm to room temperature over night
  2. 2
    Otrothe volatiles were removed in vacuo
  3. 3
    OtroThe crude material was purified by preparative HPLC

Procedimiento

3-Fluoro-isonicotinic acid (50 mg, 0.354 mmol) and 4-(trifluoromethylthio)aniline (68.5 mg, 0.354 mmol) was added to 2 ml dry THF and the mixture was cooled to −78° C. LiHMDS (1M in THF, 1.24 ml) was added and the mixture was allowed to warm to room temperature over night. Hydrochloric acid (1M in methanol, 5 ml) was added and the volatiles were removed in vacuo. The crude material was purified by preparative HPLC to give 11.4 mg (45 μmol; 10% yield) of pure desired product.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08524911B2uspto-grants-2013_09