| 摘要 |
<p> KDN derivatives represented by general formula (1) or salts thereof and antiviral agents containing the same as the active ingredient wherein R1 represents lower alkyl, lower alkenyl or aralkyl; R?2 and R3¿ may be the same or different and each represents hydrogen or -SO¿3?H, provided that R?2 and R3¿ do not represent hydrogen atoms at the same time. These compounds are excellent in antiviral activity without showing any cytotoxicity.</p> |
