Diisopropylethylamine → N1-(2-(5-chloro-1H-indol-3-yl)ethyl)-N2-(2-hydroxy-1-phenylethyl)oxalamide

HRID 58566

Reaction equation

HRID 58566 reaction equation
Cl.[Cl:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[NH:8][CH:7]=[C:6]2[CH2:12][CH2:13][NH2:14].[OH:15][CH2:16][CH:17]([NH:24][C:25](=[O:29])[C:26](O)=[O:27])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C>CN(C=O)C>[Cl:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[NH:8][CH:7]=[C:6]2[CH2:12][CH2:13][NH:14][C:26](=[O:27])[C:25]([NH:24][CH:17]([C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1)[CH2:16][OH:15])=[O:29]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 28274945-Chloro-1H-indole-3-ethylamine monohydrochlorideHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 668317012-(2-Hydroxy-1-phenylethylamino)-2-oxoacetic acid

Product 1

HCID 66831872N1-(2-(5-chloro-1H-indol-3-yl)ethyl)-N2-(2-hydroxy-1-phenylethyl)oxalamideYield 104.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

The mixture of 2-(5-chloro-1H-indol-3-yl)ethanamine hydrochloride (0.256 g; 1.09 mmol), 2-(2-hydroxy-1-phenylethylamino)-2-oxoacetic acid (0.250 g; 1.19 mmol), HATU (0.413 g: 1.09 mmol) and N,N-diisopropylethylamine (0.474 mL; 2.71 mmol) in DMF (5 mL) was stirred at room temperature overnight and was concentrated under reduced pressure. The residue was dissolved in dichloromethane and the organic layer was washed with water and was concentrated under reduced pressure. The crude material was purified by flash chromatography on silica gel (eluent 1 to 10% methanol in dichloromethane) to yield 0.440 g of N1-(2-(5-chloro-1H-indol-3-yl)ethyl)-N2-(2-hydroxy-1-phenylethyl)oxalamide as a white solid.

Workup

  1. concentrationwas concentrated under reduced pressure
  2. dissolutionThe residue was dissolved in dichloromethane
  3. washthe organic layer was washed with water
  4. concentrationwas concentrated under reduced pressure
  5. customThe crude material was purified by flash chromatography on silica gel (eluent 1 to 10% methanol in dichloromethane)

Sources & evidence

ORD record
ord-19028feb7b7e41659ec4d9ccc2adb556
Source dataset
uspto-grants-2016_09
Patent number
US09434722B2

Linked notes

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