Reacción #1726707

ord-0c37156463a54146978ac7ba121f5620

Ecuación de reacción

CC(C)(C)OC(=O)Nc1sc(Cl)cc1-c1ccccc1
2-(N-Boc-amino)-5-chloro-3-phenyl-thiophene
O=C(O)C(F)(F)F
trifluoroacetic acid
Nc1sc(Cl)cc1-c1ccccc1
2-amino-5-chloro-3-phenylthiophene

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Otrothe more volatile materials removed under reduced pressure
  2. 2
    OtroThe resulting DMF solution of 2-amino-5-chloro-3-phenylthiophene was used in the subsequent coupling step without purification

Procedimiento

2-(N-Boc-amino)-5-chloro-3-phenyl-thiophene (66 mg, 0.21 mmol) was treated with trifluoroacetic acid (1 ml) in dichloromethane (3 ml) at ambient temperature for 1 hr. The mixture was diluted with DMF (1 ml) and the more volatile materials removed under reduced pressure. The resulting DMF solution of 2-amino-5-chloro-3-phenylthiophene was used in the subsequent coupling step without purification.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08110568B2uspto-grants-2012_02