In our screening for translocase I inhibitors, we found the novel nucleoside antibiotic, A-94964 in the culture broth of Streptomyces sp. SANK 60404. The structure of A-94964 was elucidated primarily by various NMR studies, including a 1H-31P HMBC experiment. A-94964 has a unique structure which possesses a nucleoside moiety and an N-acylglucosamine moiety connected via a phosphate.