Sodium Hydroxide → HCID 10693020, compound

Participants

Reaction Steps

As described in Example 45, 245 mg (0.56 mmol) of 4-[[3-(2-amino-2-oxoethyl)-2-(methylthio)-1-(phenylmethyl)-1H-indol-5-yl]oxy]butanoic acid ethyl ester (Example 47) was hydrolyzed with 1 mL of 5N NaOH in 5 mL of THF and 15 mL of EtOH. The crude product was washed with EtOH/ether to give 195 mg (85% yield of 4-[[3-(2-amino-2-oxoethyl)-2-(methylthio)-1-(phenylmethyl)-1H-indol-5-yl]oxy]butanoic acid, mp, 187°-188° C.

Provenance & Evidence