Kazuo Nagashima

Isolation and structural elucidation of new cyclotetrapeptides, trapoxins A and B, having detransformation activities as antitumor agents.

H. Itazaki, K. Nagashima, K. Sugita, 1990, The Journal of antibiotics.

Salfredins, new aldose reductase inhibitors produced by Crucibulum sp. RF-3817. I. Fermentation, isolation and structures of salfredins.

H. Itazaki, K. Nagashima, Y. Kawamura, 1995, The Journal of antibiotics.