1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 3-(S)-[(5-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carbonyl)amino]-2-(S)-hydroxy-4-phenylbutyric acid methyl ester

HRID 1693456Notes

Reaction equation

HRID 1693456 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.[CH3:14][O:15][C:16](=[O:28])[C@@H:17]([OH:27])[C@@H:18]([NH2:26])[CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.CCN(C(C)C)C(C)C>CN(C=O)C>[CH3:14][O:15][C:16](=[O:28])[C@@H:17]([OH:27])[C@@H:18]([NH:26][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])[CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 11128579methyl (2S,3S)-3-amino-2-hydroxy-4-phenylbutanoateHCID 446307045-chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid

Product 1

HCID 112462123-(S)-[(5-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carbonyl)amino]-2-(S)-hydroxy-4-phenylbutyric acid methyl ester

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

5-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (Preparation 18, 170 mg, 0.86 mmol) and (3S,2S)-3-amino-2-hydroxy-4-phenylbutyric acid methyl ester (Preparation 21A, 174 mg, 0.83 mmol) were coupled under similar conditions to EXAMPLE 43 using HOBt (142 mg, 0.93 mmol), EDCI (200 mg, 1.04 mmol), DIPEA (0.32 ml, 1.87 mmol) in DMF (10 ml). The crude product was purified by chromatography on silica gel eluting with hexane/ethyl acetate (25:75) to give the title compound as a colourless oil. δH (CDCl3): 3.04 (4H, 2dd), 3.74 (3H, s), 4.36 (1H, br s), 4.63 (1H, m), 4.98 (1H, ddd), 6.66 (1H, s), 6.96 (1H, d), 7.18-7.35 (5H, m), 7.48 (1H, s), 8.63 (1H, s).

Workup

  1. customThe crude product was purified by chromatography on silica gel eluting with hexane/ethyl acetate (25:75)

Sources & evidence

ORD record
ord-d363f65e644944748aa1104052c00b93
Source dataset
uspto-grants-2012_04
Patent number
US08158622B2

Reaction notes

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