S. Kitagawa

Studies on the constituents of Broussonetia species. II. Six new pyrrolidine alkaloids, broussonetine A, B, E, F and broussonetinine A and B, as inhibitors of glycosidases from Broussonetia kazinoki Sieb.

G. Kusano, M. Shibano, S. Nakamura, 1997, Chemical & pharmaceutical bulletin.

Synthesis of cyclic sulfides by intramolecular ring opening of epoxides by thiolates generated by nickel complex catalyzed electroreduction of thioacetates

S. Ozaki, E. Matsui, S. Kitagawa, 2000 .