Benzoic Acid → (S)-tert-Butyl-3-((1-benzoylpyrrolidin-3-yl)amino)azetidine-1-carboxylate

HRID 403286Notes

Reaction equation

HRID 403286 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:11][CH:10]([NH:12][C@H:13]2[CH2:17][CH2:16][NH:15][CH2:14]2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:18](O)(=[O:25])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.CCN(CC)CC.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH:10]([NH:12][C@H:13]2[CH2:17][CH2:16][N:15]([C:18](=[O:25])[C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[CH2:14]2)[CH2:11]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 243Benzoic AcidHCID 8471TriethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 67289806(S)-tert-Butyl-3-(pyrrolidin-3-ylamino)azetidine-1-carboxylate

Product 1

HCID 67288181(S)-tert-Butyl-3-((1-benzoylpyrrolidin-3-yl)amino)azetidine-1-carboxylateYield 67.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of compound 5c (1 g, 4.14 mmol), compound 4a (0.557 g, 4.56 mmol), and Et3N (1.27 mL, 8.28 mmol) in CH2Cl2 (20 mL) was added HATU (2.05 g, 5.38 mmol). The reaction mixture was stirred at room temperature for 18 h. The resultant mixture was diluted with CH2Cl2 and washed with aq. NaHCO3. The organic phase was dried over Na2SO4, filtered, and concentrated under reduced pressure. Purification of the residue by flash column chromatography (silica gel, 5% MeOH/EtOAc+0.5 TEA %) gave compound 5d (0.96 g). MS m/z (M+Na+) 368.0.

Workup

  1. washwashed with aq. NaHCO3
  2. dry with materialThe organic phase was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customPurification of the residue by flash column chromatography (silica gel, 5% MeOH/EtOAc+0.5 TEA %)

Sources & evidence

ORD record
ord-37666def99c54b1085ffc8f0f551ae01
Source dataset
uspto-grants-2014_06
Patent number
US08748417B2

Reaction notes

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