1959 年 7 巻 5 号 p. 616-618
DL-2-Amino-3-guanidinopropionic acid was prepared in a fairly good yield from DL-2, 3-diaminoprorionic acid by treatment with S-methylisothiourea sulfate after protection of the amino proups in 2-and 3-positions respectively with benzoyl and benzyloxycarbonyl group.