Sodium Hydroxide → (5S,6R,7E,9E,11Z, 13E,15S)-16-(4-fluorophenoxy)-5,6,15-trihydroxy-3-oxa-7,9,11,13-hexadecatetraenoic acid

HRID 2307613Notes

Reaction equation

HRID 2307613 reaction equation
[F:1][C:2]1[CH:30]=[CH:29][C:5]([O:6][CH2:7][C@@H:8]([OH:28])/[CH:9]=[CH:10]/[CH:11]=[CH:12]\[CH:13]=[CH:14]\[CH:15]=[CH:16]\[C@@H:17]([OH:27])[C@@H:18]([OH:26])[CH2:19][O:20][CH2:21][C:22]([O:24]C)=[O:23])=[CH:4][CH:3]=1.[OH-].[Na+].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>CO>[F:1][C:2]1[CH:3]=[CH:4][C:5]([O:6][CH2:7][C@@H:8]([OH:28])/[CH:9]=[CH:10]/[CH:11]=[CH:12]\[CH:13]=[CH:14]\[CH:15]=[CH:16]\[C@@H:17]([OH:27])[C@@H:18]([OH:26])[CH2:19][O:20][CH2:21][C:22]([OH:24])=[O:23])=[CH:29][CH:30]=1

Participants

5

Reactant 3

HCID 14798Sodium HydroxideHCID 62657Potassium Phosphate, TribasicHCID 10112981Acetic acid, (((2S,3R,4E,6E,8Z,10E,12S)-13-(4-fluorophenoxy)-2,3,12-trihydroxy-4,6,8,10-tridecatetraenyl)oxy)-, methyl ester

Product 1

HCID 10112100(5S,6R,7E,9E,11Z, 13E,15S)-16-(4-fluorophenoxy)-5,6,15-trihydroxy-3-oxa-7,9,11,13-hexadecatetraenoic acidYield 41,499.602%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A solution of (5S,6R,7E,9E,11Z,13E,15S)-16-(4-fluorophenoxy)-5,6,15-trihydroxy-3-oxa-7,9,11,13-hexadecatetraenoic acid, methyl ester, (25 mg, 59 nMol) in methanol (6 mL) was treated with 1 N NaOH (aq) (25 μL, 25 μmol) solution and shaken and allowed to stand. Upon completion, the reaction was treated with saturated potassium monophosphate. Purification by chromatography on an HP20 column eluted with an aqueous methanol gradient gave 10 mg of (5S,6R,7E,9E,11Z, 13E,15S)-16-(4-fluorophenoxy)-5,6,15-trihydroxy-3-oxa-7,9,11,13-hexadecatetraenoic acid; 1H NMR (CD3OD) δ 3.6 (m, 3H), 3.88 (m, 4H), 4.18 (m, 1H), 4.52 (m, 1H), 5.84 (m, 2H), 6.03 (m, 2H), 6.34 (m, 2H), 6.74 (m, 1H), 6.95 (m, 5H) ppm.

Workup

  1. customPurification by chromatography on an HP20 column
  2. washeluted with an aqueous methanol gradient

Sources & evidence

ORD record
ord-d2a2b38a8bd14777a2ad36fe6a5215ab
Source dataset
uspto-grants-2004_12
Patent number
US06831186B2

Reaction notes

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