Hydrochloric Acid → HCID 57594555, compound

HRID 730336Notes

Reaction equation

HRID 730336 reaction equation
[OH:1][CH2:2][CH2:3][C@@H:4]([NH:24][C:25](=[O:31])OC(C)(C)C)[CH2:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:13]=[C:14]3[C:19]([CH:20]([OH:22])[CH3:21])=[CH:18][CH:17]=[CH:16][N:15]3[CH:23]=2)=[CH:8][CH:7]=1.Cl.O1CCOCC1.C(N(CC)C(C)C)(C)C.[Cl:48][C:49]1[CH:50]=[C:51]([CH:66]=[CH:67][C:68]=1[O:69][CH:70]([CH3:72])[CH3:71])C(OC1C(F)=C(F)C(F)=C(F)C=1F)=O>O>[Cl:48][C:49]1[CH:50]=[C:51]([CH:66]=[CH:67][C:68]=1[O:69][CH:70]([CH3:72])[CH3:71])[C:25]([NH:24][C@@H:4]([CH2:5][C:6]1[CH:7]=[CH:8][C:9]([C:12]2[N:13]=[C:14]3[C:19]([CH:20]([OH:22])[CH3:21])=[CH:18][CH:17]=[CH:16][N:15]3[CH:23]=2)=[CH:10][CH:11]=1)[CH2:3][CH2:2][OH:1])=[O:31]

Participants

7

Reactant 5

HCID 313Hydrochloric AcidHCID 312751,4-DioxaneHCID 81531DiisopropylethylamineHCID 57594128HCID 57594128, compoundHCID 57594302HCID 57594302, compound

Product 1

HCID 57594555HCID 57594555, compoundYield 53%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of 1,1-dimethylethyl [(1S)-3-hydroxy-1-({4-[8-(1-hydroxyethyl)imidazo[1,2-a]pyridin-2-yl]phenyl}methyl)propyl]carbamate (1.08 g, 2.54 mmol) and 4M HCl in 1,4-dioxane (8.0 mL, 32 mmol) was stirred at room temperature for 30 minutes. The reaction was concentrated to dryness, redissolved in DMF (25 mL), and to this solution was added N,N-diisopropylethylamine (1.64 g, 12.7 mmol) and pentafluorophenyl 3-chloro-4 [(1-methylethyl)oxy]benzoate (0.963 g, 2.54 mmol). The mixture was stirred for 3.0 h at room temperature, diluted with water, and extracted into ethyl acetate. The extracts were washed with water and saturated sodium chloride, dried (Na2SO4), and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (2% MeOH:EtOAc) to give the title compound (0.7 g, 53%) as a pale yellow powder. MS(ES+) m/e 522 [M+H]+.

Workup

  1. concentrationThe reaction was concentrated to dryness
  2. dissolutionredissolved in DMF (25 mL)
  3. stirringThe mixture was stirred for 3.0 h at room temperature
  4. extractionextracted into ethyl acetate
  5. washThe extracts were washed with water and saturated sodium chloride
  6. dry with materialdried (Na2SO4)
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified by flash chromatography on silica gel (2% MeOH:EtOAc)

Sources & evidence

ORD record
ord-0d6823e7df924fc6804db671b3055a3e
Source dataset
uspto-grants-2009_09
Patent number
US07582668B2

Reaction notes

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