Water → 2-[(5-Bromopyridin-3-yl)methyl]-5-(4-chlorophenyl)-4-[(2S)-3,3,3-trifluoro-2-hydroxypropyl]-2,4-dihydro-3H-1,2,4-triazol-3-one

温度

65 °C

171 mg (0.56 mmol) of the compound from Example 5A and 543 mg (1.67 mmol) of cesium carbonate were dissolved in 11 ml of acetonitrile, and 135 mg (0.56 mmol) of 3-bromo-5-(chloromethyl)pyridine hydrochloride were added. The mixture was stirred at 65° C. for 5 h. After cooling to RT, 10 ml of water were added and the mixture was extracted three times with in each case 10 ml of ethyl acetate. The combined organic phases were dried over sodium sulfate, filtered and concentrated under reduced pressure. The crude product was purified by preparative HPLC [Method 19]. This gave 102 mg (38% of theory) of the target compound.

1. temperatureAfter cooling to RT
2. extractionthe mixture was extracted three times with in each case 10 ml of ethyl acetate
3. dry with materialThe combined organic phases were dried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe crude product was purified by preparative HPLC [Method 19]

ORDレコード

ord-2f72171194464020b7310454c6cfee22

出典データセット

uspto-grants-2015_11

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US09187466B2