... 4) KS Pandey, Shriprakash, KM Rao, and R. Vaidyanathswamy, Biosci. Biotech. Biochem., 58, 647~651 (1994). 5) C. Kutal, in "NMR Shift Reagent," ed. by RE Sievers, Academic ... Chern. Soc., 72, 5137-5139 (1950). 10) RH Hall and ES Stern, J. Chern. Soc., 1950,490-498. ...