Hydrogen Peroxide → HCID 54214369, compound

Participants

Reaction Steps

In a similar manner to that described in Reference example 29(e), a reaction was carried out using (R)-4-benzyl-3-[(R)-3-(4-hydroxyphenyl)-2-(4-isopropylphenoxy)propionyl]oxazolidine-2-one (3.78 g), which is the product of Reference example 30(d), aqueous lithium hydroxide solution (1N, 20.6 ml) and aqueous hydrogen peroxide solution (31%, 2.26 ml) and the reaction mixture was treated to afford (R)-3-(4-hydroxyphenyl)-2-(4-isopropylphenoxy)propionic acid (2.18 g) as a white powder. This acid (1.95 g) was reacted with oxalyl chloride (2.73 ml) and 2-trimethylsilylethanol (4.66 ml) and the reaction mixture was treated in a similar manner to that described Reference example 29(e) to afford the desired compound (2.26 g) as a colorless oil.

Provenance & Evidence