反应详情

To a mixture of 1-cyano-4-hydroxy-7-phenoxy-isoquinoline-3-carboxylic acid methyl ester (100 mg, 0.3 μmol) and (1-amino-cyclohexyl)-acetic acid (245 mg, 1.56 mmol) (Matrix Scientific, Columbia S.C.) in 3 mL of DMF was added NaOMe solid (67 mg, 1.25 mmol). The resultant mixture was heated in a 150° C. oil bath for 7 h. Reaction mixture was diluted with water (100 mL) and acidified by 1 N HCl to pH=3-4. Precipitate was collected, dried and the purified by silica gel chromatography, eluting with 10-70% EtOAc/hexanes to provide the title compound 27 mg (0.06 mmol) in 19% yield. LC-MS ESI−: 443.95 (M−1)−.

1. customReaction mixture
2. customPrecipitate was collected
3. customdried
4. customthe purified by silica gel chromatography
5. washeluting with 10-70% EtOAc/hexanes