Tetrahydrofuran → HCID 86605288, compound

HRID 1348635Notes

Reaction equation

HRID 1348635 reaction equation
[CH2:1]([O:3][C:4](=[O:11])[C:5]([OH:10])([CH3:9])[C:6]([OH:8])=O)[CH3:2].O1CCCC1.[F:17][C:18]([F:25])([C:21]([F:24])([F:23])[F:22])[CH2:19][NH2:20].Cl.CN(C)CCCN=C=NCC.C(N(CC)C(C)C)(C)C>>[CH2:1]([O:3][C:4](=[O:11])[C:5]([OH:10])([CH3:9])[C:6]([NH:20][CH2:19][C:18]([F:25])([F:17])[C:21]([F:24])([F:23])[F:22])=[O:8])[CH3:2]

Participants

6

Reactant 5

HCID 8028TetrahydrofuranHCID 790022,2,3,3,3-PentafluoropropylamineHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 13396337Propanedioic acid, 2-hydroxy-2-methyl-, 1-ethyl ester

Product 1

HCID 86605288HCID 86605288, compoundYield 80%

Procedure

To a solution of 2.08 g (12.8 mmol) 2-hydroxy-2-methyl-malonic acid monoethyl ester in 50 ml of tetrahydrofuran 1.39 g (12.8 mmol) of 2,2,3,3,3-pentafluoropropylamine, 2.51 g (12.8 mmol) of N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride, 1.77 g (12.8 mmol) of 1-hydroxybenzotrizole hydrate and 4.48 ml (25.7 mmol) of N,N-diisopropyl-ethylamine were added. The mixture was stirred at room temperature for 18 h. Silicagel was added and the solvent was removed by distillation. The residue was purified by chromatography on silicagel (ethyl acetate/heptane=0:100 to 50:50) to yield 3.01 g (80%) of the title compound as white solid, MS m/e (%): 292.1 (M−H+, 100).

Workup

  1. additionSilicagel was added
  2. customthe solvent was removed by distillation
  3. customThe residue was purified by chromatography on silicagel (ethyl acetate/heptane=0:100 to 50:50)

Sources & evidence

ORD record
ord-3716e590135c40379ae776d4ea962179
Source dataset
uspto-grants-2007_05
Patent number
US07211573B2

Reaction notes

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