Hydrochloric Acid → HCID 67682153, compound

HRID 1751660Notes

Reaction equation

HRID 1751660 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:12][C:11]([C@@H:13]3[CH2:17][CH2:16][C@H:15]([CH3:18])[N:14]3[C:19]([O:21]C(C)(C)C)=O)=[N:10][CH:9]=2)=[CH:4][CH:3]=1.Cl.[CH3:27][O:28][C:29]([NH:31][C@@H:32]([CH:36]([CH3:38])[CH3:37])C(O)=O)=[O:30].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)Cl.CCOC(C)=O.CN(C=O)C.CO>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:12][C:11]([C@@H:13]3[CH2:17][CH2:16][C@H:15]([CH3:18])[N:14]3[C:19](=[O:21])[C@@H:32]([NH:31][C:29](=[O:30])[O:28][CH3:27])[CH:36]([CH3:38])[CH3:37])=[N:10][CH:9]=2)=[CH:4][CH:3]=1

Participants

10

Reactant 5

HCID 313Hydrochloric AcidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 10942966(2S)-2-((methoxycarbonyl)amino)-3-methylbutanoic acidHCID 58209599HCID 58209599, compound

Product 1

HCID 67682153HCID 67682153, compoundYield 79%

Reagents, catalysts & solvents 4

HCID 887MethanolSolventHCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

(2S,5S)-tert-butyl 2-(5-(4-bromophenyl)-1H-imidazol-2-yl)-5-methylpyrrolidine-1-carboxylate (562 mg, 1.38 mmol) was dissolved in DCM (8 mL), MeOH (2 mL) and HCl (4 M in dioxane, 2 mL) was added. The reaction mixture was stirred for 4 h and then concentrated under reduced pressure. The crude residue was treated with (S)-2-(methoxycarbonylamino)-3-methylbutanoic acid (241 mg, 1.38 mmol), HATU (525 mg, 1.38 mmol) and DMF (14 mL), then DIPEA (1.2 mL, 6.9 mmol) was added dropwise. After 30 min, the mixture was diluted with EtOAc and washed successively with saturated aqueous NaHCO3 and brine. The organics were dried over MgSO4, filtered and concentrated under reduced pressure. The crude residue was purified by silica column chromatography (0% to 10% MeOH/EtOAc) to afford methyl (S)-1-((2S,5S)-2-(5-(4-bromophenyl)-1H-imidazol-2-yl)-5-methylpyrrolidin-1-yl)-3-methyl-1-oxobutan-2-ylcarbamate (503 mg, 79%).

Workup

  1. concentrationconcentrated under reduced pressure
  2. waitAfter 30 min
  3. washwashed successively with saturated aqueous NaHCO3 and brine
  4. dry with materialThe organics were dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe crude residue was purified by silica column chromatography (0% to 10% MeOH/EtOAc)

Sources & evidence

ORD record
ord-f93c6dbd8adc4d83abd715705d348a3f
Source dataset
uspto-grants-2015_10
Patent number
US09156823B2

Reaction notes

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