反应详情

温度

70 °C

A mixture of 1.66 parts of 2-chloro-3-pyridinecarbonitrile, 4.28 parts of cis-4-amino-N-[1-(2-aminoethyl)-3-methoxy-4-piperidinyl]-5-chloro-2-methoxybenzamide, 1.3 parts of sodium carbonate and 22.5 parts of N,N-dimethylacetamide was stirred for 20 hours at 70° C. The reaction mixture was taken up in dichloromethane. The organic layer was washed with water, dried, filtered and evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol (95:5 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was crystallized from acetonitrile. The product was filtered off and dried, yielding 1.19 parts (21.6%) of cis-4-amino-5-chloro-N-[1-[2-[(3-cyano-2-pyridinyl)amino]ethyl]-3-methoxy-4-piperidinyl]-2-methoxybenzamide; mp. 134.0° C. (compound 32).

1. washThe organic layer was washed with water
2. customdried
3. filtrationfiltered
4. customevaporated
5. customThe residue was purified by column chromatography over silica gel using
6. additiona mixture of trichloromethane and methanol (95:5 by volume) as eluent
7. customThe pure fractions were collected
8. customthe eluent was evaporated
9. customThe residue was crystallized from acetonitrile
10. filtrationThe product was filtered off
11. customdried