Salicylic Acid → HCID 67175546, compound

HRID 1922580Notes

Reaction equation

HRID 1922580 reaction equation
[N:1]1([C:7](=[O:29])[CH2:8][CH2:9][CH:10]=[CH:11][CH2:12][CH:13]=[CH:14][CH2:15][CH:16]=[CH:17][CH2:18][CH:19]=[CH:20][CH2:21][CH:22]=[CH:23][CH2:24][CH:25]=[CH:26][CH2:27][CH3:28])[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.[C:30](O)(=[O:38])[C:31]1[C:32](=[CH:34][CH:35]=[CH:36][CH:37]=1)[OH:33].CCN(CC)CC.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CC#N>[OH:33][C:32]1[CH:34]=[CH:35][CH:36]=[CH:37][C:31]=1[C:30]([N:4]1[CH2:5][CH2:6][N:1]([C:7](=[O:29])[CH2:8][CH2:9][CH:10]=[CH:11][CH2:12][CH:13]=[CH:14][CH2:15][CH:16]=[CH:17][CH2:18][CH:19]=[CH:20][CH2:21][CH:22]=[CH:23][CH2:24][CH:25]=[CH:26][CH2:27][CH3:28])[CH2:2][CH2:3]1)=[O:38]

Participants

6

Reactant 4

HCID 338Salicylic AcidHCID 8471TriethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 54312597HCID 54312597, compound

Product 1

HCID 67175546HCID 67175546, compoundYield 19.7%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a mixture of 1-(piperazin-1-yl)docosa-4,7,10,13,16,19-hexaen-1-one (1.17 g, 2.95 mmol), salicylic acid (0.61 g, 4.43 mmol) and Et3N (0.89 g, 8.85 mmol) in CH3CN (10 mL) was added HATU (1.68 g, 4.43 mmol). The mixture was stirred (RT, 16 h). The solvent was removed under reduced pressure and the residue was extracted with EtOAc (4×50 mL). The combined organic layers were washed successively with 1N aqueous HCl, water, 5% NaHCO3 and water, and dried over MgSO4. The solvent was removed under reduced pressure. Purification of the crude product by prep-HPLC afforded 1-(4-(2-hydroxybenzoyl)piperazin-1-yl)docosa-4,7,10,13,16,19-hexaen-1-one (300 mg, 19.6%) as a light yellow oil. Mass calculated for C33H44N2O3=516.71; found: [M+H]+ 517.6.

Workup

  1. customThe solvent was removed under reduced pressure
  2. extractionthe residue was extracted with EtOAc (4×50 mL)
  3. washThe combined organic layers were washed successively with 1N aqueous HCl, water, 5% NaHCO3 and water
  4. dry with materialdried over MgSO4
  5. customThe solvent was removed under reduced pressure
  6. customPurification of the crude product

Sources & evidence

ORD record
ord-33334afdceee48faa8ffc0c0ff1dc894
Source dataset
uspto-grants-2012_05
Patent number
US08173831B2

Reaction notes

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