... Bull. [29(10)2825~2831(1981) Further Studies on the Use of Multi-substituted Benzenesulfonyl Groups for Protection of the Guanidino Function of Argininel) MASAHIKO FUJINO,* MITSUHIRO WAKIMASU, and CHIEKO ... M. Fujino, O. Nishimura, M. Wakimasu, and C ...