... Guttmunn, P.-A. Juquenoud, and J.-P. Wuller, Helv. ... 81 (1962) RECUEIL 697 ... We obtained 90 nig (81 %), mp about 300" (dec.), [a] :: - 8.5" (c = 4.0 in 6 N HCI), which, within the limits of experimental error, is in agreement with values given in the literature for L-tyrosine and found ...
[Amin, Muhammad R.; Harper, David B.; Moloney, Janet M.; Murphy, Cormac D.; Howard, Judith A. K.; O'Hagan, David Chemical Communications, 1997 , # 15 p. 1471 - 1472]