Hydrochloric Acid → HCID 178502338, compound

HRID 1751672Notes

Reaction equation

HRID 1751672 reaction equation
[Br:1][C:2]1[C:3]([F:27])=[C:4]2[C:24](=[CH:25][CH:26]=1)[C:8]1[NH:9][C:10]([C@@H:12]3[CH2:16][CH2:15][CH2:14][N:13]3[C:17](OC(C)(C)C)=[O:18])=[N:11][C:7]=1[CH:6]=[CH:5]2.Cl.[CH3:29][O:30][C:31]([NH:33][C@@H:34]([CH:38]([CH3:40])[CH3:39])C(O)=O)=[O:32].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[C:3]([F:27])=[C:4]2[C:24](=[CH:25][CH:26]=1)[C:8]1[NH:9][C:10]([C@@H:12]3[CH2:16][CH2:15][CH2:14][N:13]3[C:17](=[O:18])[C@@H:34]([NH:33][C:31](=[O:32])[O:30][CH3:29])[CH:38]([CH3:40])[CH3:39])=[N:11][C:7]=1[CH:6]=[CH:5]2

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 178451894(S)-tert-butyl 2-(7-bromo-6-fluoro-1H-naphtho[1,2-d]imidazol-2-yl)pyrrolidine-1-carboxylate

Product 1

HCID 178502338HCID 178502338, compoundYield 103.1%

Reagents, catalysts & solvents 4

HCID 887MethanolSolventHCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

(S)-tert-butyl 2-(7-bromo-6-fluoro-1H-naphtho[1,2-d]imidazol-2-yl)pyrrolidine-1-carboxylate (204 mg, 0.47 mmol) was dissolved in DCM (5 mL), MeOH (1 mL) and HCl (4 M in dioxane, 1 mL) was added. The reaction mixture was stirred for 16 h and then concentrated under reduced pressure. The crude residue was treated with (S)-2-(methoxycarbonylamino)-3-methylbutanoic acid (82 mg, 0.47 mmol), HATU (179 mg, 0.47 mmol) and DMF (6 mL), then DIPEA (0.41 mL, 2.35 mmol) was added dropwise. After 3 h, 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 30% MeOH/EtOAc) to afford methyl (S)-1-((S)-2-(7-bromo-6-fluoro-1H-naphtho[1,2-d]imidazol-2-yl)pyrrolidin-1-yl)-3-methyl-1-oxobutan-2-ylcarbamate (238 mg, 49%).

Workup

  1. concentrationconcentrated under reduced pressure
  2. waitAfter 3 h
  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 30% MeOH/EtOAc)

Sources & evidence

ORD record
ord-ad716fb9a3bd4df49b5062344a9a45b3
Source dataset
uspto-grants-2015_10
Patent number
US09156823B2

Reaction notes

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