References
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- All melting points and boiling points are uncorrected. Melting points were measured by the use of a Yamato melting point apparatus. IR spectra were recorded on a Shimadzu IR-27G infrared spectrophotometer. NMR spectra were obtained by use of a Hitachi Perkin-Elmer R–20A High Resolution NMR spectrometer with TMS as an internal standard. GLC measurements were made on a Shimadzu GC–4B instrument.
- Data of Ig were reported in Ref. 4).
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- N. Izumiya, Nippon KagakuZasshi, 72, 700 (1951); J. P. Greenstein and M. Winitz, “Chemistry of the Amino Acids,” Vol. III, John Wiley and Sons, Inc., New York, N. Y., 1963, pp. 2609~2611.
- Available from Calbiochem, La Jolla, California, U.S.A.
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- J. P. Greenstein and M. Winitz, “Chemistry of the Amino Acids,” Vol. III, John Wiley and Sons, Inc., New York, N. Y., 1963, p. 2608.