Triethylamine → Tert-butyl 3-(fluoromethyl)-3-[({[3-(trifluoromethyl)benzoyl]amino}acetyl)amino]pyrrolidine-1-carboxylate

HRID 1809950Notes

Reaction equation

HRID 1809950 reaction equation
[NH2:1][C:2]1([CH2:14][F:15])[CH2:6][CH2:5][N:4]([C:7]([O:9][C:10]([CH3:13])([CH3:12])[CH3:11])=[O:8])[CH2:3]1.[F:16][C:17]([F:32])([F:31])[C:18]1[CH:19]=[C:20]([CH:28]=[CH:29][CH:30]=1)[C:21]([NH:23][CH2:24][C:25](O)=[O:26])=[O:22].CN([P+](ON1N=NC2C=CC=CC1=2)(N(C)C)N(C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>CN(C=O)C.C(OCC)(=O)C.CCCCCC>[F:15][CH2:14][C:2]1([NH:1][C:25](=[O:26])[CH2:24][NH:23][C:21](=[O:22])[C:20]2[CH:28]=[CH:29][CH:30]=[C:18]([C:17]([F:16])([F:32])[F:31])[CH:19]=2)[CH2:6][CH2:5][N:4]([C:7]([O:9][C:10]([CH3:11])([CH3:12])[CH3:13])=[O:8])[CH2:3]1

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 2777432((3-(Trifluoromethyl)benzoyl)amino)acetic acidHCID 53417413tert-Butyl 3-amino-3-(fluoromethyl)pyrrolidine-1-carboxylate

Product 1

HCID 59556186Tert-butyl 3-(fluoromethyl)-3-[({[3-(trifluoromethyl)benzoyl]amino}acetyl)amino]pyrrolidine-1-carboxylateYield 84.9%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 21226206Ethyl acetate hexaneSolvent

Procedure

337 mg (1.52 mmol) of tert-butyl 3-amino-3-(fluoromethyl)pyrrolidine-1-carboxylate, 457 mg (1.85 mmol) of {[3-(trifluoromethyl)benzoyl]amino}acetic acid, BOP reagent (817 mg, 1.85 mmol) and 0.64 mL (4.6 mmol) of triethylamine were dissolved in 15 mL of DMF at room temperature. The reaction mixture was stirred at r.t. overnight. Direct chromatography on silica gel (flash chromatography grade) with 50% ethyl acetate-hexane gave 578 mg (1.29 mmol, 84%) of tert-butyl 3-(fluoromethyl)-3-[({[3-(trifluoromethyl)benzoyl]amino}acetyl)amino]pyrrolidine-1-carboxylate: 1H NMR (400 MHz, CDCl3) δ 8.15-8.12 (1H, m), 8.05-7.98 (1H, m), 7.81-7.77 (1H, m), 7.63-7.58 (1H, m), 6.64-6.62 (1H, m), 4.20-4.16 (2H, m), 3.61-3.57 (2H, m), 3.55-3.42 (1H, m), 2.98-2.94 (2H, m), 2.90-2.86 (2H, m), 1.62-1.60 (2H, m), 1.45 (9H, s); MS (m/e): 448 (M+1)+.

Sources & evidence

ORD record
ord-08970a872b5d488c913a523f097c4eae
Source dataset
uspto-grants-2013_01
Patent number
US08362003B2

Reaction notes

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