Trifluoroacetic acid → N-(2-(2-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16, 19-hexaenamidoethyl)disulfanyl)ethyl)-2-hydroxybenzamide

HRID 1525994Notes

Reaction equation

HRID 1525994 reaction equation
C(O)(C(F)(F)F)=O.[NH2:8][CH2:9][CH2:10][S:11][S:12][CH2:13][CH2:14][NH:15][C:16](=[O:24])[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[OH:23].[C:25](O)(=[O:47])[CH2:26][CH2:27]/[CH:28]=[CH:29]\[CH2:30]/[CH:31]=[CH:32]\[CH2:33]/[CH:34]=[CH:35]\[CH2:36]/[CH:37]=[CH:38]\[CH2:39]/[CH:40]=[CH:41]\[CH2:42]/[CH:43]=[CH:44]\[CH2:45][CH3:46].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CC#N.CCOC(C)=O>[C:25]([NH:8][CH2:9][CH2:10][S:11][S:12][CH2:13][CH2:14][NH:15][C:16](=[O:24])[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[OH:23])(=[O:47])[CH2:26][CH2:27]/[CH:28]=[CH:29]\[CH2:30]/[CH:31]=[CH:32]\[CH2:33]/[CH:34]=[CH:35]\[CH2:36]/[CH:37]=[CH:38]\[CH2:39]/[CH:40]=[CH:41]\[CH2:42]/[CH:43]=[CH:44]\[CH2:45][CH3:46]

Participants

8

Reactant 5

HCID 6422Trifluoroacetic acidHCID 81531DiisopropylethylamineHCID 445580DoconexentHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 58218979N-(2-(2-(2-aminoethyl)-disulfanyl)-ethyl)-2-hydroxybenzamide

Product 1

HCID 59409965N-(2-(2-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16, 19-hexaenamidoethyl)disulfanyl)ethyl)-2-hydroxybenzamideYield 44.5%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Procedure

The TFA salt of N-(2-(2-(2-aminoethyl)-disulfanyl)-ethyl)-2-hydroxybenzamide (1.08 mmol) was taken up in anhydrous CH3CN (15 mL) along with (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoic acid (DHA, 352 mg, 1.08 mmol), HATU (450 mg, 1.2 mmol) and DIEA (0.550 mL). The resulting reaction mixture was stirred at room temperature for 2 h. It was then diluted with EtOAc and washed successively with saturated aqueous NaHCO3 and brine. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. Purification by chromatography (60% EtOAc, 40% pentane) afforded N-(2-(2-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamidoethyl)disulfanyl)ethyl)-2-hydroxybenzamide (280 mg, 44%). Mass calculated for C33H46N2O3S2: 582.3; found: [M+H]+=583.

Workup

  1. customThe resulting reaction mixture
  2. washwashed successively with saturated aqueous NaHCO3 and brine
  3. dry with materialThe organic layer was dried over Na2SO4
  4. concentrationconcentrated under reduced pressure
  5. customPurification by chromatography (60% EtOAc, 40% pentane)

Sources & evidence

ORD record
ord-ea4fe49bc2ae42429d9606da74febedd
Source dataset
uspto-grants-2015_07
Patent number
US09085527B2

Reaction notes

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