反应详情

0.50 g (1.4 mmol) of (4S)-3-benzyloxycarbonyl-4-{2-[ethoxy (methyl)phosphinyl]ethyl}-1,3-oxazolidin-5-one (from Example 12) are, as described in DE-A-3,817,956, hydrolyzed by heating in 6 N hydrochloric acid. 0.25 g (82.1% of theory) of L-homoalanin-4-yl(methyl)phosphinic acid hydrochloride are obtained as a white solid having a melting point of Mp 202° C. (decomposition).