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 1671745Notes

Reaction equation

HRID 1671745 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) δ3.6 (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-3d8899b4066e454abe532e938565641f
Source dataset
uspto-grants-2011_08
Patent number
US07994346B2

Reaction notes

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