Potassium Iodide → (S)-2-ethoxy-3-[2-methyl-4-(5-methyl-2-phenyl-oxazol-4-ylmethoxy)-phenyl]-propionic acid methyl ester

HRID 1064890Notes

Reaction equation

[CH3:1][O:2][C:3](=[O:17])[C@@H:4]([O:14][CH2:15][CH3:16])[CH2:5][C:6]1[CH:11]=[CH:10][C:9]([OH:12])=[CH:8][C:7]=1[CH3:13].Cl[CH2:19][C:20]1[N:21]=[C:22]([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[O:23][C:24]=1[CH3:25].C(=O)([O-])[O-].[Cs+].[Cs+].[I-].[K+]>>[CH3:1][O:2][C:3](=[O:17])[C@@H:4]([O:14][CH2:15][CH3:16])[CH2:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][CH2:19][C:20]2[N:21]=[C:22]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[O:23][C:24]=2[CH3:25])=[CH:8][C:7]=1[CH3:13]

Participants

Reactant 4

HCID 4875Potassium Iodide

HCID 10796Cesium carbonate

HCID 97942894-(Chloromethyl)-5-methyl-2-phenyl-1,3-oxazole

HCID 68616579(S)-2-ethoxy-3-(4-hydroxy-2-methyl-phenyl)-propionic acid methyl ester

Product 1

HCID 69280494(S)-2-ethoxy-3-[2-methyl-4-(5-methyl-2-phenyl-oxazol-4-ylmethoxy)-phenyl]-propionic acid methyl ester

Procedure

In analogy to the procedure described in example 1 f], (2S)-2-ethoxy-3-(4-hydroxy-2-methyl-phenyl)-propionic acid methyl ester (example 1 d]) was reacted with 4-chloromethyl-5-methyl-2-phenyl-oxazole in the presence of cesium carbonate and potassium iodide to yield (S)-2-ethoxy-3-[2-methyl-4-(5-methyl-2-phenyl-oxazol-4-ylmethoxy)-phenyl]-propionic acid methyl ester as colorless liquid.

Workup

customexample 1 d

Sources & evidence

ORD record: ord-a97f52660cd545a6b6fe5ee5ac02407f
Source dataset: uspto-grants-2005_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06969725B2

Reaction notes

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