Acetic Acid → (2S,4S)-4-fluoro-1-(2-hydroxyacetyl)pyrrolidine-2-carbonitrile

温度

50 °C

(2S,4S)-4-fluoro-1-[2-(tert-butyldimethylsilyloxy)acetyl]pyrrolidine-2-carbonitrile (5.50 g) was dissolved in tetrahydrofuran (37 mL). To this solution, water (37 mL) and acetic acid (115 mL) were sequentially added and the mixture was stirred at 50° C. for 7.5 hours and then at 70° C. for 9 hours. Subsequently, the reaction mixture was concentrated under reduced pressure and the resulting pale brown tar-like residue was triturated with diethyl ether. The resulting solid was collected by filtration and dried under reduced pressure to give (2S,4S)-4-fluoro-1-(2-hydroxyacetyl)pyrrolidine-2-carbonitrile as a pale brown solid (3.19 g).

1. waitat 70° C. for 9 hours
2. concentrationSubsequently, the reaction mixture was concentrated under reduced pressure
3. customthe resulting pale brown tar-like residue was triturated with diethyl ether
4. filtrationThe resulting solid was collected by filtration
5. customdried under reduced pressure

ORDレコード

ord-fa379d84b0304b3da7ee545f642da20c

出典データセット

uspto-grants-2011_03

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US07915427B2