1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 11208307, compound

HRID 751695Notes

Reaction equation

HRID 751695 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.Cl.[CH2:15]([O:17][C:18](=[O:21])[CH2:19][NH2:20])[CH3:16].C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.CCN=C=NCCCN(C)C>CN(C=O)C>[CH2:15]([O:17][C:18](=[O:21])[CH2:19][NH:20][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])[CH3:16]

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 2723640Glycine ethyl ester, hydrochlorideHCID 446307045-chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid

Product 1

HCID 11208307HCID 11208307, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 5-chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (Preparation 18, 800 mg, 4.1 mmol) in DMF (40 mL) was added glycine ethyl ester hydrochloride (625 mg, 4.5 mmol), HOBt (0.55 g, 4.1 mmol) and DIPEA (2.13 mL, 12.2 mmol). After 5 min, EDCI (1.01 g, 5.3 mmol) was added and the reaction stirred at rt for 16 h. The solvent was removed in vacuo and the solid partitioned between water (100 mL) and ethyl acetate (3×80 mL). The combined organic fractions were dried (MgSO4), concentrated in vacuo and purified by chromatography on silica gel eluting with methanol/dichloromethane (4:96) to give the title compound as a yellow solid. δH (CD3OD): 1.28 (3H, t), 4.14 (2H, s), 4.23 (2H, q), 7.10 (1H, s), 7.68 (1H, s), 8.59 (1H, s); m/z (ES+)=282 [M+H]+.

Workup

  1. customThe solvent was removed in vacuo
  2. customthe solid partitioned between water (100 mL) and ethyl acetate (3×80 mL)
  3. dry with materialThe combined organic fractions were dried (MgSO4)
  4. concentrationconcentrated in vacuo
  5. custompurified by chromatography on silica gel eluting with methanol/dichloromethane (4:96)

Sources & evidence

ORD record
ord-7bd1f863d7b0417e8e4fd308331c2470
Source dataset
uspto-grants-2008_07
Patent number
US07405210B2

Reaction notes

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