1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 5-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid [1-(S)-(4-fluorobenzyl)-2-(3-hydroxyazetidin-1-yl)-2-oxoethyl]amide

HRID 751704Notes

Reaction equation

HRID 751704 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[CH:10]=[C:9]([C:11]([NH:13][C@@H:14]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([F:25])=[CH:21][CH:20]=3)[C:15](O)=[O:16])=[O:12])[NH:8][C:5]2=[CH:6][N:7]=1.Cl.[OH:27][CH:28]1[CH2:31][NH:30][CH2:29]1.C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.CCN=C=NCCCN(C)C>CN(C=O)C>[F:25][C:22]1[CH:23]=[CH:24][C:19]([CH2:18][C@H:14]([NH:13][C:11]([C:9]2[NH:8][C:5]3=[CH:6][N:7]=[C:2]([Cl:1])[CH:3]=[C:4]3[CH:10]=2)=[O:12])[C:15]([N:30]2[CH2:31][CH:28]([OH:27])[CH2:29]2)=[O:16])=[CH:20][CH:21]=1

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27592903-Hydroxyazetidine hydrochlorideHCID 597536992-(S)-[(5-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carbonyl)amino]-3-(4-fluorophenyl)propionic acid

Product 1

HCID 114074055-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid [1-(S)-(4-fluorobenzyl)-2-(3-hydroxyazetidin-1-yl)-2-oxoethyl]amide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

2-(S)-[(5-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carbonyl)amino]-3-(4-fluorophenyl)propionic acid (100 mg, 0.28 mmol), 3-hydroxyazetidine hydrochloride (Heterocycles, 2002, 56(1–2), 433–442; 30 mg, 0.28 mmol) and HOBt (37 mg, 0.28 mmol) were dissolved in DMF (5 ml) and DIPEA (0.14 ml, 0.83 mmol). After 5 min, EDCI (69 mg, 0.36 mmol) was added and the reaction mixture stirred at rt for 16 h. The solvent was removed in vacuo and the residue triturated with water. Purification by chromatography on silica gel eluting with methanol:dichloromethane (1:49 to 3:97) gave the title compound as a yellow solid. δH (CD3OD): 3.08–3.21 (2H, m), 3.58–3.63 (0.5H, m), 3.84–3.91 (0.5H, m), 4.03–4.09 (0.5H, m), 4.25–4.32 (0.5H, m), 4.38–4.94 (4H, m), 7.03–7.12 (2H, m), 7.15–7.19 (1H, m), 7.30–7.38 (2H, m), 7.68 (1H, s), 8.59 (1H, s); RT=3.32 min.

Workup

  1. customThe solvent was removed in vacuo
  2. customthe residue triturated with water
  3. customPurification by chromatography on silica gel eluting with methanol:dichloromethane (1:49 to 3:97)

Sources & evidence

ORD record
ord-ff0ff68c89e24998977a4e9570474537
Source dataset
uspto-grants-2008_07
Patent number
US07405210B2

Reaction notes

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