Reacción #44417

ord-df8b0ec0c5c04a37b7ab3bd35f278c0e

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    OtroThe product was obtained as a mixture of regioisomers which
  2. 2
    Otrowere separated by column chromatography

Procedimiento

In an analogous fashion to Example 1, an approximately 1:1 mixture of 1-(6-chloropyrazin-2-yl)-1H-benzimidazole-5-carbonitrile and 1-(6-chloropyrazin-2-yl)-1H-benzimidazole-6-carbonitrile (100 mg, 0.39 mmol) was condensed with (1S)-1,2,3,4-tetrahydronaphthalen-1-amine (69 mg, 0.47 mmol). The product was obtained as a mixture of regioisomers which were separated by column chromatography using dichloromethane-methanol (95:5) as eluant. From the less polar fractions 1-{6[(1S)-1,2,3,4-tetrahydronaphthalen-1-ylamino]pyrazin-2-yl}-1H-benzimidazole-6-carbonitrile was obtained as a yellow semi-solid (26 mg).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US07737143B2uspto-grants-2010_06