Trifluoroacetic acid → 2-(2-amino-ethyl)-4-(4-fluoro-phenyl)-5-formyl-1H-pyrrole-3-carboxylic acid ethyl ester

HRID 1811253Notes

Reaction equation

HRID 1811253 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[C:10]([C:11]2[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=2)=[C:9]([CH:18]=[O:19])[NH:8][C:7]=1[CH2:20][CH2:21][NH:22]C(OC(C)(C)C)=O)=[O:5])[CH3:2].FC(F)(F)C(O)=O>ClCCl>[CH2:1]([O:3][C:4]([C:6]1[C:10]([C:11]2[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=2)=[C:9]([CH:18]=[O:19])[NH:8][C:7]=1[CH2:20][CH2:21][NH2:22])=[O:5])[CH3:2]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 866376812-(2-tert-butoxycarbonylamino-ethyl)-4-(4-fluoro-phenyl)-5-formyl-1H-pyrrole-3-carboxylic acid ethyl ester

Product 1

HCID 866376822-(2-amino-ethyl)-4-(4-fluoro-phenyl)-5-formyl-1H-pyrrole-3-carboxylic acid ethyl ester

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A stirred solution of 2-(2-tert-butoxycarbonylamino-ethyl)-4-(4-fluoro-phenyl)-5-formyl-1H-pyrrole-3-carboxylic acid ethyl ester (1.02 g, 2.5 mmol) in dichloromethane (25 ml) was added dropwise slowly with trifluoroacetic acid (2.5 ml) at room temperature. Upon completion of the addition, the mixture was stirred for 2 hours, and concentrated to give 2-(2-amino-ethyl)-4-(4-fluoro-phenyl)-5-formyl-1H-pyrrole-3-carboxylic acid ethyl ester which was used as such.

Workup

  1. additionUpon completion of the addition
  2. concentrationconcentrated

Sources & evidence

ORD record
ord-397efb5d8b2043bead73af4aa74dc856
Source dataset
uspto-grants-2013_01
Patent number
US08362251B2

Reaction notes

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