Tetrahydrofuran → HCID 86605291, compound

HRID 1348656Notes

Reaction equation

HRID 1348656 reaction equation
[CH2:1]([O:3][C:4](=[O:11])[C:5]([OH:10])([CH3:9])[C:6]([OH:8])=O)[CH3:2].O1CCCC1.Cl.[F:18][C:19]([F:24])([F:23])[CH2:20][CH2:21][NH2:22].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:22][CH2:21][CH2:20][C:19]([F:24])([F:23])[F:18])=[O:8])[CH3:2]

Participants

6

Reactant 5

HCID 8028TetrahydrofuranHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 13396337Propanedioic acid, 2-hydroxy-2-methyl-, 1-ethyl esterHCID 252105053,3,3-Trifluoropropylamine hydrochloride

Product 1

HCID 86605291HCID 86605291, compoundYield 94%

Procedure

To a solution of 2.00 g (8.51 mmol) 2-hydroxy-2-methyl-malonic acid monoethyl ester in 60 ml of tetrahydrofuran 1.27 g (8.51 mmol) of 3,3,3-trifluoropropylamine hydrochloride, 1.67 g (8.51 mmol) of N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride, 1.17 g (8.51 mmol) of 1-hydroxybenzotrizole hydrate and 4.46 ml (25.5 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 dichloromethane/methanol 7:3 to yield 2.33 g (94%) of the title compound, MS m/e (%): 258.1 (M+H+, 100).

Workup

  1. additionSilicagel was added
  2. customthe solvent was removed by distillation
  3. customThe residue was purified by chromatography on silicagel dichloromethane/methanol 7:3

Sources & evidence

ORD record
ord-cf011bfecebe4d52927535f578a763df
Source dataset
uspto-grants-2007_05
Patent number
US07211573B2

Reaction notes

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