1-Hydroxybenzotriazole → (4-Benzyl-4-hydroxypiperidin-1-yl)(2-(1,3-oxazol-5-yl)phenyl)methanone

HRID 60602

Reaction equation

HRID 60602 reaction equation
[O:1]1[C:5]([C:6]2[CH:14]=[CH:13][CH:12]=[CH:11][C:7]=2[C:8]([OH:10])=O)=[CH:4][N:3]=[CH:2]1.[CH2:15]([C:22]1([OH:28])[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]1)[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1.Cl.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1>CN(C=O)C.O.C(N(CC)CC)C>[CH2:15]([C:22]1([OH:28])[CH2:27][CH2:26][N:25]([C:8]([C:7]2[CH:11]=[CH:12][CH:13]=[CH:14][C:6]=2[C:5]2[O:1][CH:2]=[N:3][CH:4]=2)=[O:10])[CH2:24][CH2:23]1)[C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1

Participants

8

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 981524-Benzyl-4-piperidinolHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 533937912-(5-Oxazolyl)benzoic Acid

Product 1

HCID 86680861(4-Benzyl-4-hydroxypiperidin-1-yl)(2-(1,3-oxazol-5-yl)phenyl)methanoneYield 48.7%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

A suspension of 2-(1,3-oxazol-5-yl)benzoic acid (0.30 g), 4-benzyl-4-hydroxypiperidine (0.36 g), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.46 g), 1-hydroxybenzotriazole (0.40 g) and triethylamine (0.40 g) in DMF (3 mL) was stirred at room temperature for 16 hr. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/petroleum ether) to give the title compound (0.28 g).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with water and saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate/petroleum ether)

Sources & evidence

ORD record
ord-36628f1f2ee446bb81ac9b64024d3616
Source dataset
uspto-grants-2016_09
Patent number
US09440990B2

Linked notes

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