Ethanolamine → HCID 18343701, compound

A solution of 1,1′-carbonyldiimidazole (0.169 g) and (R)-N-[2-chloro4-(4-carboxyphenylsulphonyl)phenyl]-2-hydroxy-2-methyl-3,3,3-trifluoropropanamide (Example 121) (0.30 g) in DMF (1 ml)/ethyl acetate (9 ml) was heated at 50° C. for 30 minutes. Ethanolamine (0.055 ml) was added and the mixture was heated and stirred a further 17 hours. The mixture was cooled, diluted with ethyl acetate (50 ml), washed with dilute aqueous hydrochloric acid (25 ml), water (25 ml), saturated aqueous sodium hydrogen carbonate solution (25 ml) and brine, then dried. Volatile material was removed by evaporation and the residue was purified by chromatography, eluting with 2.5% ethanol/ethyl acetate to give the title compound (0.25 g) as a solid. NMR (CDCl3+DMSO-δ6):1.58 (s, 3H), 3.44 (m, 2H), 3.62 (m, 2H), 4.26 (t, 1H), 7.05 (s, 1H), 7.76 (dd, 1H), 7.83-8.01 (m, 6H), 8.56 (d, 1H), 9.73 (brs, 1H); MS (ESP−): 495.

1. temperaturethe mixture was heated
2. temperatureThe mixture was cooled
3. washwashed with dilute aqueous hydrochloric acid (25 ml), water (25 ml), saturated aqueous sodium hydrogen carbonate solution (25 ml) and brine
4. customdried
5. customVolatile material was removed by evaporation
6. customthe residue was purified by chromatography
7. washeluting with 2.5% ethanol/ethyl acetate

ORD record

ord-d2533015b9044a3a9edc9c9f78e83748

Source dataset

uspto-grants-2002_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06498275B1