1-Hydroxybenzotriazole → HCID 70239453, compound

HRID 2305223Notes

Reaction equation

HRID 2305223 reaction equation
[C:1]1([C:7]2[N:8]=[C:9]([C@@H:18]3[CH2:22][CH2:21][CH2:20][C@H:19]3[CH2:23][C:24]3[CH:25]=[C:26]([CH:30]=[CH:31][CH:32]=3)[C:27]([OH:29])=O)[O:10][C:11]=2[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[NH2:33]C[C@H](C1C=CC=CC=1)O.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>CN(C=O)C.CCOC(C)=O>[C:1]1([C:7]2[N:8]=[C:9]([C@@H:18]3[CH2:22][CH2:21][CH2:20][C@H:19]3[CH2:23][C:24]3[CH:25]=[C:26]([CH:30]=[CH:31][CH:32]=3)[C:27]([NH2:33])=[O:29])[O:10][C:11]=2[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

7

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 643217(1S)-2-amino-1-phenylethan-1-olHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 11327698HCID 11327698, compound

Product 1

HCID 70239453HCID 70239453, compoundYield 122%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a mixture of 3-{[(1S,2R)-2-(4,5-diphenyloxazol-2-yl)-1-cyclopentyl]methyl}benzoic acid (76 mg, 0.18 mmol) and (S)-2-amino-1-phenylethanol (30 mg, 0.22 mmol) in DMF (4 ml) was added 1-hydroxybenzotriazole (36 mg, 0.27 mmol) and 1-ethyl-3-(3′-dimethylaminopropyl)carbodiimide hydrochloride (69 mg, 0.36 mmol). After stirring the resulting mixture at room temperature for 2 hours, the reaction mixture was diluted with EtOAc (30 ml), washed with 1N-hydrochloric acid, water, saturated sodium hydrogencarbonate solution, water and brine successively, dried dried over magnesium sulfate, and evaporated in vacuo. The residue was purified by silica gel column chromatography (hexane:EtOAc, 1:1 elution) to give N-1(2S)-2-hydroxy-2-phenylethyl]-3-{[(1S,2R)-2-(4,5-diphenyloxazol-2-yl)-1-cyclopentyl]methyl}benzamide (92.8 mg, 95%).

Workup

  1. washwashed with 1N-hydrochloric acid, water, saturated sodium hydrogencarbonate solution, water and brine successively
  2. customdried
  3. dry with materialdried over magnesium sulfate
  4. customevaporated in vacuo
  5. customThe residue was purified by silica gel column chromatography (hexane:EtOAc, 1:1 elution)

Sources & evidence

ORD record
ord-b1d65d077fbd40449374f1ee7e057080
Source dataset
uspto-grants-2002_08
Patent number
US06437146B1

Reaction notes

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