(1) We gratefully acknowledge partial support by the National Institute of Health, Cancer Institute, CA 11967-08. We also thank the Research Foundation, Oklahoma State U'niversity, for preliminary support. We gratefully acknowledge the Sational Science Foundation Institution grant to purchase t> he XI,-100 nmr unit, Grant KSF GP-17641.(2) Research Associate, 1972.(3) RV Heinselman and J. Seumusskovicz," Progress in Drug Research," ...