Novel pyrazinoxide compound of NF-1616-904 and a pharmaceutical composition containing the same and a process for its preparation.

摘要

A novel pyrazinoxide compound of NF-1616-904 having the formula (1), and a process for its preparation by hydrolyzing the intermediate compound of NF-1616-902 which is separated from a culture broth of a microorganism belonging to the genus Thielavia. The pyrazinoxide compound of NF-1616-904 possesses biological and pharmacological activities, and is a useful pharmaceutical for preventing and treating diseases caused by superoxide radicals (O2<-> ), and nephritis.