1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (S)-methyl 2-((4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamido)propanoate
Reaction equation
Cl.[CH3:2][O:3][C:4](=[O:8])[C@H:5]([CH3:7])[NH2:6].[C:9](O)(=[O:31])[CH2:10][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]/[CH:27]=[CH:28]\[CH2:29][CH3:30].CCN=C=NCCCN(C)C.CCN(C(C)C)C(C)C>CC#N.CCOC(C)=O>[C:9]([NH:6][C@@H:5]([CH3:7])[C:4]([O:3][CH3:2])=[O:8])(=[O:31])[CH2:10][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]/[CH:27]=[CH:28]\[CH2:29][CH3:30]Participants
7
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
L-Alanine methyl ester hydrochloride (0.85 g, 6.1 mmol) was taken up in CH3CN (20 mL) along with (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoic acid (2.0 g, 6.1 mmol), EDCI (1.3 g, 6.72 mmol) and DIEA (1.3 mL). The resulting reaction mixture was stirred at room temperature for 2 h. It was then diluted with EtOAc and washed with dilute aqueous NaHCO3 and brine. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure to afford (S)-methyl 2-((4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamido)propanoate (2.0 g, 79%).
Workup
- customThe resulting reaction mixture
- washwashed with dilute aqueous NaHCO3 and brine
- dry with materialThe organic layer was dried over Na2SO4
- filtrationfiltered
- concentrationconcentrated under reduced pressure
Sources & evidence
- ORD record
- ord-33d74438da374013bf7b9ab921477403
- Source dataset
- uspto-grants-2014_12
- Patent number
- USRE045275E1
Reaction notes
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