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

HRID 919145
Notes
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Reaction equation

HRID 919145 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>CC(=O)OCC>[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]
ParticipantsProcedureWorkupSources & evidenceReaction notes

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 8857
Ethyl Acetate
Solvent
2×

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 EA (40 mL) at 0° C. was added a solution of DCC (0.87 g, 4.2 mmol) in EA (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 EA-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 EA-PE (0-50%)

Sources & evidence

ORD record
ord-53f5d561f1b34d6c9f138bf87168de9c
Source dataset
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09272984B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes