1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → Ethyl(2S)-3-(4-{2-[(cyclohexylmethyl)(heptyl)amino]-2-oxoethoxy}phenyl)-2-ethoxypropanoate

HRID 854155Notes

Reaction equation

HRID 854155 reaction equation
[CH2:1]([O:3][C@H:4]([C:17]([O:19][CH2:20][CH3:21])=[O:18])[CH2:5][C:6]1[CH:16]=[CH:15][C:9]([O:10][CH2:11][C:12]([OH:14])=O)=[CH:8][CH:7]=1)[CH3:2].Cl.[CH:23]1([CH2:29][NH:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37])[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1.Cl.C(N=C=NCCCN(C)C)C>C(Cl)Cl.CN(C1C=CN=CC=1)C>[CH:23]1([CH2:29][N:30]([CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37])[C:12](=[O:14])[CH2:11][O:10][C:9]2[CH:8]=[CH:7][C:6]([CH2:5][C@H:4]([O:3][CH2:1][CH3:2])[C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:16][CH:15]=2)[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1

Participants

6

Reactant 3

HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 11162260{4-[(2S)-2,3-Diethoxy-3-oxopropyl]phenoxy}acetic AcidHCID 17157756N-(cyclohexylmethyl)-N-heptylamine hydrochloride

Product 1

HCID 11465983Ethyl(2S)-3-(4-{2-[(cyclohexylmethyl)(heptyl)amino]-2-oxoethoxy}phenyl)-2-ethoxypropanoateYield 58.4%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent2×

Procedure

To a solution of {4-[(2S)-2,3-diethoxy-3-oxopropyl]phenoxy}acetic acid (0.108 g, 0.36 mmol) in methylene chloride (3.6 mL) were added N-(cyclohexylmethyl)-N-heptylamine hydrochloride (0.090 g, 0.36 mmol) and DMAP (0.098 g, 0.80 mmol) followed by 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.070 g, 0.36 mmol) and the reaction mixture was stirred at room temperature overnight. The mixture was diluted with methylene chloride (25 mL) and the organic phase was washed with 5% HCl (3×25 mL), aqueous NaHCO3 (25 mL) and brine (25 mL), dried over Na2SO4 and concentrated in vacuo. Purification on a prepacked column of silica gel (Isolute® SPE Column, 5 g Si/25 mL) with methanol (0-1% gradient) in methylene chloride as the eluent yielded 0.103 g (58%) of a colourless oil.

Workup

  1. washthe organic phase was washed with 5% HCl (3×25 mL), aqueous NaHCO3 (25 mL) and brine (25 mL)
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated in vacuo
  4. customPurification on a prepacked column of silica gel (Isolute® SPE Column, 5 g Si/25 mL) with methanol (0-1% gradient) in methylene chloride as the eluent

Sources & evidence

ORD record
ord-afae3bfd1f3544c3901802c2b2b370f2
Source dataset
uspto-grants-2007_08
Patent number
US07256307B2

Reaction notes

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