Ethanol → HCID 131712851, compound

Participants

Reaction Steps

According to the same procedure as in Example 1, 1-(1-methoxycarbonylethyl)-3-hydroxy-4-phenylazetidin-2-one (513 mg.), which had been obtained in Referential Example 6, was subjected to hydrogenolysis at 50° C. in ethanol under a hydrogen pressure of one atmosphere in the presence of a 10% Pd-C (220 mg.). The reaction was completed in 12 hours. The same after-treatment as in Example 1 was followed to give methyl ester of α-hydroxy-β-phenylpropionylalanine (475 mg., yield: 91.9%), which was an oil. The NMR and IR spectra were completely identical with those of the authentic sample obtained in Example 9.

Provenance & Evidence