Meiji Seika Kaisha, Ltd.

Hiroomi Watabe

Shinichi Kondo

Takashi Shomura

Masao Koyama

Masaji Sezaki

Tadashi Nakazawa

Akira Shimizu

Yoshikazu Sato

Toru Sasaki

Haruo Yamamoto

Kazunori Ohba

Mieko Nagasawa

Junko Yoshida

Shiro Sakakibara

Shigetaka Ishii

A substance represented by formula: ##STR1## and a salt thereof, which has antifungal activity and a process for producing the same utilizing a microorganism capable of producing the substance and belonging to the genus Streptomyces.

Antibiotic pyridine compound

Novel substances exhibiting antimicrobial activity and antitumor activity, a process for producing them by cultivating a microorganism belonging to the genus Streptomyces and capable of producing them and derivatives of such substances.

Certain anti-tumor duocarmycin antibiotics from streptomyces

An antibiotic substance represented by formula (I) ##STR1## or a pharmaceutically acceptable salt thereof, which is produced by cultivating a microorganism belonging to the genus Streptomyces and isolating the substance from the cultured cells.

Novel antitumor antibiotic substance and a method for production thereof

Growing community of inventors

Kanagawa, Japan

Hiroomi Watabe