1-Hydroxybenzotriazole → 2-{2-[5-{[6-(Methoxymethyl)pyridin-3-yl]oxy}-7-(tetrahydro-2H-pyran-4-yloxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}-N-methylacetamide

HRID 1042153Notes

Reaction equation

HRID 1042153 reaction equation
[CH3:1][O:2][CH2:3][C:4]1[N:9]=[CH:8][C:7]([O:10][C:11]2[CH:12]=[C:13]3[C:17](=[C:18]([O:20][CH:21]4[CH2:26][CH2:25][O:24][CH2:23][CH2:22]4)[CH:19]=2)[NH:16][C:15]([C:27]2[S:28][CH:29]([CH2:32][C:33]([OH:35])=O)[CH2:30][N:31]=2)=[CH:14]3)=[CH:6][CH:5]=1.Cl.[CH3:37][N:38](C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1.Cl.CN>CCCCCC.C(OCC)(=O)C.CO.O.CN(C)C=O.C(N(CC)CC)C>[CH3:1][O:2][CH2:3][C:4]1[N:9]=[CH:8][C:7]([O:10][C:11]2[CH:12]=[C:13]3[C:17](=[C:18]([O:20][CH:21]4[CH2:26][CH2:25][O:24][CH2:23][CH2:22]4)[CH:19]=2)[NH:16][C:15]([C:27]2[S:28][CH:29]([CH2:32][C:33]([NH:38][CH3:37])=[O:35])[CH2:30][N:31]=2)=[CH:14]3)=[CH:6][CH:5]=1

Participants

11

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 6364545Methylamine hydrochlorideHCID 66726112{2-[5-{[6-(Methoxymethyl)pyridin-3-yl]oxy}-7-(tetrahydro-2H-pyran-4-yloxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetic acid

Product 1

HCID 667259322-{2-[5-{[6-(Methoxymethyl)pyridin-3-yl]oxy}-7-(tetrahydro-2H-pyran-4-yloxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}-N-methylacetamideYield 49%

Reagents, catalysts & solvents 6

HCID 887MethanolSolventHCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8058HexaneSolventHCID 8471TriethylamineSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of {2-[5-{[6-(methoxymethyl)pyridin-3-yl]oxy}-7-(tetrahydro-2H-pyran-4-yloxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetic acid (300 mg), 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (231 mg), 1-hydroxybenzotriazole (162 mg), methylamine hydrochloride (81 mg), triethylamine (0.2 mL), and N,N-dimethylformamide (15 mL) was stirred at room temperature for 2 hr. Water was added to the reaction solution, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over magnesium sulfate, filtered and concentrated under reduced pressure. The obtained crude product was subjected to basic silica gel column chromatography (methanol:ethyl acetate:hexane=0:50:50 to 10:90:0, volume ratio) to give an orange oil. The obtained orange oil was purified by preparative HPLC to give the title compound (150 mg, yield 49%) as a white amorphous solid.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe obtained crude product
  7. customto give an orange oil
  8. customThe obtained orange oil was purified by preparative HPLC

Sources & evidence

ORD record
ord-c6f2b21354334e5bb2573cca83509aab
Source dataset
uspto-grants-2013_10
Patent number
US08557805B2

Reaction notes

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