Sodium Methoxide → (2S,3R)-3-(4-benzyloxy-2,6-dimethyl-phenyl)-2-ethoxy-3-hydroxy-propionic acid methyl ester

HRID 394353Notes

Reaction equation

HRID 394353 reaction equation
C([C@H]1COC(=O)N1[C:14](=[O:37])[C@@H:15]([O:34][CH2:35][CH3:36])[C@@H:16]([C:18]1[C:23]([CH3:24])=[CH:22][C:21]([O:25][CH2:26][C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)=[CH:20][C:19]=1[CH3:33])[OH:17])C1C=CC=CC=1.[CH3:38][O-:39].[Na+]>CO>[CH3:38][O:39][C:14](=[O:37])[C@@H:15]([O:34][CH2:35][CH3:36])[C@@H:16]([C:18]1[C:19]([CH3:33])=[CH:20][C:21]([O:25][CH2:26][C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)=[CH:22][C:23]=1[CH3:24])[OH:17]

Participants

4

Reactant 2

HCID 10942334Sodium MethoxideHCID 68616717(S)-4-benzyl-3-[(2S,3R)-3-(4-benzyloxy-2,6-dimethyl-phenyl)-2-ethoxy-3-hydroxy-propionyl] oxazolidin-2-one

Product 1

HCID 68615974(2S,3R)-3-(4-benzyloxy-2,6-dimethyl-phenyl)-2-ethoxy-3-hydroxy-propionic acid methyl ester

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

In analogy to the procedure described in example 17 b], (S)-4-benzyl-3-[(2S,3R)-3-(4-benzyloxy-2,6-dimethyl-phenyl)-2-ethoxy-3-hydroxy-propionyl]-oxazolidin-2-one was treated with sodium methoxide in methanol to give (2S,3R)-3-(4-benzyloxy-2,6-dimethyl-phenyl)-2-ethoxy-3-hydroxy-propionic acid methyl ester as colorless liquid. According to 1H-NMR spectroscopy, one single diastereomer was obtained.

Sources & evidence

ORD record
ord-68dc96db42b54081b9c57184b10e5617
Source dataset
uspto-grants-2004_10
Patent number
US06809110B2

Reaction notes

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