| 摘要 |
<p>Addition compounds having the formula (I) wherein R1 represents an aliphatic oxycarbonyl group, benzyloxycarbonyl group which can have nuclear substituents, or benzoyl, aromatic sulfonyl or aromatic sulfinyl group; R2 represents methyl, isopropyl, isobutyl, isoamyl or benzyl group; R3 represents a lower alkoxyl, benzyloxy or benzhydryloxy group and n represents 1 or 2, are decomposed into the constituent dipeptide esters and amino acid esters by the action of an acid.</p> |
