Yamanouchi Pharmaceutical Company Ltd.

Harumitsu Imai

Shigenobu Kadota

Takeshi Saito

Koji Nagai

Ken-ichi Suzuki

Shigeru Miyazaki

Hidenori Yazawa

Kenichi Suzuki

Kenji Abe

Koichi Tanaka

Isao Takahashi

Shu F Liang

Q-2819 substance and the use thereof

A Q-1047 substance of the general formula (I) and methods of producing the same, which has antioxidant activity and are useful as prophylactic and therapeutic agents for nephritis.

Q-1047 Substances

Novel microorganisms belonging to the genus Micromonospora capable of producing antibiotics YS-02930 K-D, -E or -H represented by formula: ##STR1## wherein R represents a hydrogen atom or a formyl group and a dotted line represents a double bond or a bond shown by: ##STR2## are disclosed. The antibiotics are produced by culturing bacteria belonging to the genus Micromonospora capable of producing at least one antibiotic selected from YS-02930 K-D, -E and -H and, harvesting antibiotic YS-02930 K-D, -E or -H.

Novel microorganisms and a novel process for producing antibiotics

A 7-formylaminocephalosporin compound represented by general formula (I): ##STR1## wherein R.sup.1 represents a carboxy group or an aminocarboxymethyl group ##STR2## R.sup.2 represents a hydrogen atom or a protective group for a carboxy group, and

7-formylaminocephalosporin compounds

Growing community of inventors

Kanagawa, Japan

Harumitsu Imai