Patent ID: 7329427

Claim:
A process for producing a γ-hydroxyamino acid derivative represented by the following formula (2) or a salt thereof: said process comprising subjecting a dihydroisoxazole derivative represented by the following formula (1) or a salt thereof to catalytic hydrogenation wherein R 1 is a 3-indolymethyl group, which may be substituted with at least one of a halogen atom, a hydroxyl group, an alkyl group having up to 3 carbon atoms, an alkoxy group having up to 3 carbon atoms, and an amino group; R 2 and R 3 each, independently of the other, represents a hydrogen atom, an alkyl group having up to 5 carbon atoms, or an aralkyl group having up to 12 carbon atoms; and each asymmetric carbon atom in formulae (1) and (2) may have a steric configuration of (R), (S) or (RS).