1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 5-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (2-hydroxy-2-pyridin-3-yl-ethyl)amide

HRID 751731Notes

Reaction equation

HRID 751731 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[CH:10]=[C:9]([C:11]([OH:13])=O)[NH:8][C:5]2=[CH:6][N:7]=1.[NH2:14][CH2:15][CH:16]([C:18]1[CH:19]=[N:20][CH:21]=[CH:22][CH:23]=1)[OH:17].C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.CCN=C=NCCCN(C)C>CN(C=O)C>[OH:17][CH:16]([C:18]1[CH:19]=[N:20][CH:21]=[CH:22][CH:23]=1)[CH2:15][NH:14][C:11]([C:9]1[NH:8][C:5]2=[CH:6][N:7]=[C:2]([Cl:1])[CH:3]=[C:4]2[CH:10]=1)=[O:13]

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 37105942-Amino-1-(pyridin-3-yl)ethan-1-olHCID 446307045-chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid

Product 1

HCID 597535745-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (2-hydroxy-2-pyridin-3-yl-ethyl)amide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 5-chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (Preparation 18, 296 mg, 1.51 mmol) and 2-amino-1-pyridin-3-ylethanol (Preparation 98, 214 mg, 1.55 mmol) in DMF (10 mL) was added HOBt (225 mg, 1.47 mmol), DIPEA (0.55 mL, 3.16 mmol) and EDCI (340 mg, 1.77 mmol). After stirring at rt for 12 h the solvent was removed in vacuo and the residue then taken up in THF (150 mL) and washed with diluted sodium hydroxide solution (1M, 50 mL) and brine (2×50 mL). The solution was dried (MgSO4) and concentrated to an oil that was further purified by flash chromatography on silica gel (eluent: DCM/methanol: 90/10+0.5% triethylamine) to give the title compound as off-white solid. δH (d6 DMSO): 3.53 (2H, m), 4.85 (1H, m), 5.75 (1H, d), 7.15 (1H, s), 7.37 (1H, dd), 7.75 (2H, m), 8.47 (1H, m), 8.57 (1H, s), 8.89 (1H, appt), 12.24 (1H, s); m/z (ES+)=317.17 [M+H]+; RT=2.71 min.

Workup

  1. customwas removed in vacuo
  2. washwashed with diluted sodium hydroxide solution (1M, 50 mL) and brine (2×50 mL)
  3. dry with materialThe solution was dried (MgSO4)
  4. concentrationconcentrated to an oil that
  5. customwas further purified by flash chromatography on silica gel (eluent: DCM/methanol: 90/10+0.5% triethylamine)

Sources & evidence

ORD record
ord-fc7cc1a00d1b48429a381d2f959b607c
Source dataset
uspto-grants-2008_07
Patent number
US07405210B2

Reaction notes

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