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Tetrahydrofuran → (2S,3R)-3-hydroxy-5-[4-(6-methoxypyridin-3-yl)phenyl]-2-[2-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)ethyl]pentanoic acid

HRID 2410412
Notes
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Reaction equation

HRID 2410412 reaction equation
C(=O)([O-])[O-].[K+].[K+].C([O:9][C@H:10]([CH2:28][CH2:29][C:30]1[CH:35]=[CH:34][C:33]([C:36]2[CH:37]=[N:38][C:39]([O:42][CH3:43])=[CH:40][CH:41]=2)=[CH:32][CH:31]=1)[C@H:11]([CH2:15][CH2:16][N:17]1[C:22](=[O:23])[C:21]2[CH:24]=[CH:25][CH:26]=[CH:27][C:20]=2[N:19]=[N:18]1)[C:12]([OH:14])=[O:13])=O.O1CCCC1>CO>[OH:9][C@H:10]([CH2:28][CH2:29][C:30]1[CH:31]=[CH:32][C:33]([C:36]2[CH:37]=[N:38][C:39]([O:42][CH3:43])=[CH:40][CH:41]=2)=[CH:34][CH:35]=1)[C@H:11]([CH2:15][CH2:16][N:17]1[C:22](=[O:23])[C:21]2[CH:24]=[CH:25][CH:26]=[CH:27][C:20]=2[N:19]=[N:18]1)[C:12]([OH:14])=[O:13]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 8028TetrahydrofuranHCID 11430Potassium CarbonateHCID 86700968(2S,3R)-3-(formyloxy)-5-[4-(6-methoxypyridin-3-yl)phenyl]-2-[2-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)ethyl]pentanoic acid

Product 1

HCID 66671252(2S,3R)-3-hydroxy-5-[4-(6-methoxypyridin-3-yl)phenyl]-2-[2-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)ethyl]pentanoic acid

Reagents, catalysts & solvents 1

HCID 887
Methanol
Solvent

Procedure

Potassium carbonate (2.3 g) was added to a solution of the compound obtained from step e above (8 g) in methanol (40 mL) and tetrahydrofuran (30 mL) at 0° C. The reaction mixture was stirred at room temperature for 3 hours. The solvents were evaporated, and the residue was taken into water and ethyl acetate. The organic layer was washed with water and brine solution and dried over anhydrous sodium sulphate. The solvent was evaporated under reduced pressure to obtain a residue which was purified by column chromatography over silica gel using 60% ethyl acetate in hexane as eluant to afford the title compound (3 g).

Workup

  1. customat 0° C
  2. customThe solvents were evaporated
  3. washThe organic layer was washed with water and brine solution
  4. dry with materialdried over anhydrous sodium sulphate
  5. customThe solvent was evaporated under reduced pressure
  6. customto obtain a residue which
  7. customwas purified by column chromatography over silica gel using 60% ethyl acetate in hexane as eluant

Sources & evidence

ORD record
ord-7a0eada144284f53a153040e11f66fc3
Source dataset
uspto-grants-2014_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08816073B2

Reaction notes

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