Triethylamine → Benzyl-(2S)-2-[amino(hydroxyimino)methyl]4,4-difluoropyrrolidine-1-carboxylate

반응식

[CH2:1]([O:8][C:9]([N:11]1[CH2:15][C:14]([F:17])([F:16])[CH2:13][C@H:12]1[C:18]#[N:19])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.[NH2:21][OH:22].C(N(CC)CC)C>C(O)C>[CH2:1]([O:8][C:9]([N:11]1[CH2:15][C:14]([F:17])([F:16])[CH2:13][C@H:12]1[C:18]([NH2:19])=[N:21][OH:22])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

실험 절차

A solution of benzyl-(2S)-2-cyano-4,4-difluoropyrrolidine-1-carboxylate, hydroxylamine hydrochloride (1.4 eq.) and triethylamine (1.7 eq.) in ethanol was refluxed under nitrogen for 5 hours. Mixture was concentrated and residues taken up in ethyl acetate and washed with water and brine. Combined organics were dried over Na2SO4 and evaporated to give title compound as a foam.