Triethylamine → HCID 12074886, compound

HRID 457740Notes

Reaction equation

HRID 457740 reaction equation
[NH2:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[C:4](=[O:16])[N:5]([CH2:12][C:13]([OH:15])=O)[C:6]2=[O:11].[N:17]1([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]1.CCN=C=NCCCN(C)C.Cl.ON1C2C=CC=CC=2N=N1.C(N(CC)CC)C>ClCCl>[NH2:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[C:4](=[O:16])[N:5]([CH2:12][C:13]([N:20]1[CH2:19][CH2:18][N:17]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:22][CH2:21]1)=[O:15])[C:6]2=[O:11]

Participants

7

Reactant 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 143452tert-Butyl piperazine-1-carboxylateHCID 829795HCID 829795, compoundHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride

Product 1

HCID 12074886HCID 12074886, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

2 g (9.08 mmol) of (4-amino-1,3dioxo-1,3-dihydro-2H-isoindol-2-yl)acetic acid, 1.692 g (9.08 mmol) of tert-butyl 1-piperazinecarboxylate, 1.916 g (10 mmol) of N-(3-dimethylaminopropyl)-N-ethylcarbodiimide hydrochloride, 1.35 g (10 mmol) of 1-hydroxy-1H-benzotriazole and 3.8 ml (27 mmol) of triethylamine are stirred in 200 ml of dichloromethane at RT overnight. The reaction mixture is then washed with sat. aqu. NaHCO3 solution, dried over MgSO4, filtered and concentrated. The crude product (3.05 g) can be used without further purification for the next step or, if required, be chromatographed on silica gel (CH2Cl2/EtOH=1/0 to 2/1+0.1% conc. aqueous ammonia solution) for purification.

Workup

  1. washThe reaction mixture is then washed with sat. aqu
  2. dry with materialNaHCO3 solution, dried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude product (3.05 g) can be used without further purification for the next step
  6. custombe chromatographed on silica gel (CH2Cl2/EtOH=1/0 to 2/1+0.1% conc. aqueous ammonia solution) for purification

Sources & evidence

ORD record
ord-d7713bc13a984462969cb7069cca3027
Source dataset
uspto-grants-2007_03
Patent number
US07189738B2

Reaction notes

Loading…