Salicylic Acid → N-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamidopropyl)-2-hydroxybenzamide

HRID 85380Notes

Reaction equation

HRID 85380 reaction equation
[NH2:1][CH2:2][CH:3]([NH:5][C:6](=[O:28])[CH2:7][CH2:8]/[CH:9]=[CH:10]\[CH2:11]/[CH:12]=[CH:13]\[CH2:14]/[CH:15]=[CH:16]\[CH2:17]/[CH:18]=[CH:19]\[CH2:20]/[CH:21]=[CH:22]\[CH2:23]/[CH:24]=[CH:25]\[CH2:26][CH3:27])[CH3:4].[OH:29][C:30]1[CH:38]=[CH:37][CH:36]=[CH:35][C:31]=1[C:32](O)=[O:33].N1C=CN=C1.C1CCC(N=C=NC2CCCCC2)CC1>CCOC(C)=O>[C:6]([NH:5][CH:3]([CH3:4])[CH2:2][NH:1][C:32](=[O:33])[C:31]1[CH:35]=[CH:36][CH:37]=[CH:38][C:30]=1[OH:29])(=[O:28])[CH2:7][CH2:8]/[CH:9]=[CH:10]\[CH2:11]/[CH:12]=[CH:13]\[CH2:14]/[CH:15]=[CH:16]\[CH2:17]/[CH:18]=[CH:19]\[CH2:20]/[CH:21]=[CH:22]\[CH2:23]/[CH:24]=[CH:25]\[CH2:26][CH3:27]

Participants

6

Reactant 4

HCID 338Salicylic AcidHCID 795ImidazoleHCID 10868DicyclohexylcarbodiimideHCID 59193269HCID 59193269, compound

Product 1

HCID 59193323N-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamidopropyl)-2-hydroxybenzamideYield 50.5%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent2×

Procedure

To a solution of (4Z,7Z,10Z,13Z,16Z,19Z)—N-(1-aminopropan-2-yl)docosa-4,7,10,13,16,19-hexaenamide (1.60 g, 4.2 mmol), 2-hydroxybenzoic acid (0.57 g, 4.2 mmol) and imidazole (0.29 g, 4.2 mmol) in EtOAc (40 mL) at 0° C. was added a solution of DCC (0.87 g, 4.2 mmol) in EtOAc (40 mL). The mixture was allowed to warm to RT, stirred (16 h) and filtered. The solvent was removed under reduced pressure and the crude product was purified by chromatography on silica gel, eluting with EtOAc-PE (0-50%) to afford N-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamidopropyl)-2-hydroxybenzamide (1.07 g, 50.5%) as a light yellow oil. Mass calculated for C32H44N2O3=504.70; found: [M+H]+=505.5.

Workup

  1. filtrationfiltered
  2. customThe solvent was removed under reduced pressure
  3. customthe crude product was purified by chromatography on silica gel
  4. washeluting with EtOAc-PE (0-50%)

Sources & evidence

ORD record
ord-c307c43608144a97b22b6319f32c529d
Source dataset
uspto-grants-2014_09
Patent number
US08846972B2

Reaction notes

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