1-Hydroxybenzotriazole → HCID 67118565, compound

HRID 1189036Notes

Reaction equation

HRID 1189036 reaction equation
[CH3:1][O:2][CH2:3][CH:4]([CH3:35])[O:5][C:6]1[CH:7]=[C:8]([O:24][C:25]2[CH:26]=[N:27][C:28]([S:31]([CH3:34])(=[O:33])=[O:32])=[CH:29][CH:30]=2)[CH:9]=[C:10]2[C:14]=1[NH:13][C:12]([C:15]1[S:16][CH:17]([CH2:20][C:21](O)=[O:22])[CH2:18][N:19]=1)=[CH:11]2.Cl.[CH2:37]([N:39]=C=NCCCN(C)C)C.ON1C2C=CC=CC=2N=N1.Cl.CN>O.CN(C)C=O.C(N(CC)CC)C>[CH3:1][O:2][CH2:3][CH:4]([CH3:35])[O:5][C:6]1[CH:7]=[C:8]([O:24][C:25]2[CH:26]=[N:27][C:28]([S:31]([CH3:34])(=[O:33])=[O:32])=[CH:29][CH:30]=2)[CH:9]=[C:10]2[C:14]=1[NH:13][C:12]([C:15]1[S:16][CH:17]([CH2:20][C:21]([NH:39][CH3:37])=[O:22])[CH2:18][N:19]=1)=[CH:11]2

Participants

8

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 6364545Methylamine hydrochlorideHCID 67118476HCID 67118476, compound

Product 1

HCID 67118565HCID 67118565, compoundYield 62.4%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

A mixture of {2-[7-(2-methoxy-1-methylethoxy)-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetic acid (250 mg), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (140 mg), 1-hydroxybenzotriazole (100 mg), methylamine hydrochloride (100 mg), triethylamine (120 mg) and N,N-dimethylformamide (3 mL) was stirred at room temperature for 15 h. Water was added to the mixture and the resultant was extracted with ethyl acetate. The organic layer was washed successively with saturated aqueous sodium hydrogen carbonate solution and brine, dried (MgSO4), filtered, and concentrated in vacuo. The residue was purified by silica gel chromatography (ethyl acetate:methanol=100:0 to 95:5, volume ratio) to give pale yellow crystals. The crystals were recrystallized from ethyl acetate-hexane to give the title compound (160 mg, 62%) as pale yellow prisms. MS 533 (MH+). mp 107-109° C.

Workup

  1. extractionthe resultant was extracted with ethyl acetate
  2. washThe organic layer was washed successively with saturated aqueous sodium hydrogen carbonate solution and brine
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by silica gel chromatography (ethyl acetate:methanol=100:0 to 95:5, volume ratio)
  7. customto give pale yellow crystals
  8. customThe crystals were recrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-1eff771ed5f1433c8480fee799402c41
Source dataset
uspto-grants-2014_03
Patent number
US08673942B2

Reaction notes

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