Trifluoroacetic acid → Ethyl 3-[2-(1-isopropylcarbamoyl-piperidin-4-yl)-ethoxy]-benzoate

HRID 391208Notes

Reaction equation

HRID 391208 reaction equation
[NH:1]1[CH2:6][CH2:5][CH:4]([CH2:7][CH2:8][O:9][C:10]2[CH:11]=[C:12]([CH:18]=[CH:19][CH:20]=2)[C:13]([O:15][CH2:16][CH3:17])=[O:14])[CH2:3][CH2:2]1.C(O)(C(F)(F)F)=O.CCN(C(C)C)C(C)C.[CH:37]([N:40]=[C:41]=[O:42])([CH3:39])[CH3:38]>C(Cl)Cl>[CH:37]([NH:40][C:41]([N:1]1[CH2:2][CH2:3][CH:4]([CH2:7][CH2:8][O:9][C:10]2[CH:11]=[C:12]([CH:18]=[CH:19][CH:20]=2)[C:13]([O:15][CH2:16][CH3:17])=[O:14])[CH2:5][CH2:6]1)=[O:42])([CH3:39])[CH3:38]

Participants

6

Reactant 4

HCID 6422Trifluoroacetic acidHCID 61277Isopropyl isocyanateHCID 81531DiisopropylethylamineHCID 56830235Ethyl 3-(2-piperidin-4-yl-ethoxy)-benzoate

Product 1

HCID 66929612Ethyl 3-[2-(1-isopropylcarbamoyl-piperidin-4-yl)-ethoxy]-benzoate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
20 °C

Procedure

Ethyl 3-(2-piperidin-4-yl-ethoxy)-benzoate (1.0 g of the TFA salt, 2.6 mmol) was dissolved in DCM (10 ml), were upon DIPEA (1.3 ml, 7.7 mmol) and isopropyl isocyanate (0.33 g, 3.8 mmol) was added. The reaction mixture was shaken overnight at 20° C. Silica gel (10 ml) was added, and the solvent removed in vacuo. Flash chromatography (EtOAc/heptan 35:65 □ 55:45) provided 0.67 g of the title compound. LC-MS (m/z): 364 (M+2).

Workup

  1. additionwas added
  2. additionSilica gel (10 ml) was added
  3. customthe solvent removed in vacuo

Sources & evidence

ORD record
ord-dd121ffdd6464977a00d418cadb0c1a3
Source dataset
uspto-grants-2013_02
Patent number
US08383820B2

Reaction notes

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