Dimethylformamide → (2S,4S)-1-(2-(1H-1,2,4-triazol-1-yl)acetyl)-4-(benzylamino)-N-(4-(4-fluorophenoxy)phenyl)pyrrolidine-2-carboxamide

HRID 1630283Notes

Reaction equation

HRID 1630283 reaction equation
[CH2:1](Br)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N:9]1([CH2:14][C:15]([N:17]2[CH2:21][C@@H:20]([NH2:22])[CH2:19][C@H:18]2[C:23]([NH:25][C:26]2[CH:31]=[CH:30][C:29]([O:32][C:33]3[CH:38]=[CH:37][C:36]([F:39])=[CH:35][CH:34]=3)=[CH:28][CH:27]=2)=[O:24])=[O:16])[CH:13]=[N:12][CH:11]=[N:10]1.CN(C=O)C.C([O-])([O-])=O.[K+].[K+]>Cl>[N:9]1([CH2:14][C:15]([N:17]2[CH2:21][C@@H:20]([NH:22][CH2:1][C:2]3[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=3)[CH2:19][C@H:18]2[C:23]([NH:25][C:26]2[CH:27]=[CH:28][C:29]([O:32][C:33]3[CH:34]=[CH:35][C:36]([F:39])=[CH:37][CH:38]=3)=[CH:30][CH:31]=2)=[O:24])=[O:16])[CH:13]=[N:12][CH:11]=[N:10]1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 67009874HCID 67009874, compound

Product 1

HCID 45377581(2S,4S)-1-(2-(1H-1,2,4-triazol-1-yl)acetyl)-4-(benzylamino)-N-(4-(4-fluorophenoxy)phenyl)pyrrolidine-2-carboxamideYield 22.3%

Reagents, catalysts & solvents 1

HCID 313Hydrochloric AcidSolvent

Procedure

Step (b) Benzyl bromide (0.131 mL, 1.10 mmol) was added to a flask charged with (2S,4S)-1-(2-(1H-1,2,4-triazol-1-yl)acetyl)-4-amino-N-(4-(4-fluorophenoxy)phenyl)pyrrolidine-2-carboxamide (0.465 g, 1.10 mmol), DMF (10 mL), and K2CO3 (0.607 g, 4.40 mmol). The reaction mixture was stirred at ambient temperature for 30 minutes and then diluted with 1N hydrochloric acid (30 mL). The dilution was washed with ethyl acetate (30 mL). The aqueous layer was basified with 2N sodium hydroxide (40 mL) and then extracted with methylene chloride (40 mL). The extract was washed with brine (20 mL), dried over anhydrous sodium sulfate, filtered and concentrated. Product was purified from the residue by reverse phase HPLC to give Compound 80, (2S,4S)-1-(2-(1H-1,2,4-triazol-1-yl)acetyl)-4-(benzylamino)-N-(4-(4-fluorophenoxy)phenyl)pyrrolidine-2-carboxamide (126 mg, 0.245 mmol, 22%), as an off-white solid. 1H-NMR (400 MHz, CDCl3): 12.08 (br. s, 1H), 11.13 (s, 1H), 9.05 (s, 1H), 8.24-8.16 (m, 1H), 7.99-7.94 (m, 1H), 7.41-7.20 (m, 4H), 7.04-6.82 (m, 7H), 5.21 (d, J=16.0 Hz, 1H), 5.00 (s, 1H), 4.93 (d, J=16.0 Hz, 1H), 4.74-4.57 (m, 1H), 3.96-5.59 (m, 3H), 3.14-3.07 (m, 2H), 2.62-2.00 (m, 2H). MS (EI) for C28H27FN6O3. found 515.2 (MH+).

Workup

  1. washThe dilution was washed with ethyl acetate (30 mL)
  2. extractionextracted with methylene chloride (40 mL)
  3. washThe extract was washed with brine (20 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customProduct was purified from the residue by reverse phase HPLC

Sources & evidence

ORD record
ord-13a78c7b6ab1442780a1f3ff463beae3
Source dataset
uspto-grants-2014_07
Patent number
US08791102B2

Reaction notes

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