The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 1995
Filed:
Sep. 24, 1993
Akira Matsuda, Sapporo, JP;
Tohru Ueda, Sapporo, JP;
Kenji Takenuki, Sapporo, JP;
Haruhiko Machida, Choshi, JP;
Yamasa Shoyu Kabushiki Kaisha, Chiba, JP;
Abstract
Disclosed are novel 2'-alkylidenepyrimidine nucleoside derivatives represented by formula [I]: ##STR1## R.sup.1 is an amino group or a hydroxy group, R.sup.2 is a hydrogen atom, a halogen atom or a lower alkyl group, R.sup.3 is a hydrogen atom or a lower alkyl group, and R.sup.4 is a hydrogen atom or a phosphate residue, or salts thereof. These novel compounds can be produced from uridine or cytidine derivatives by alkylidenating the 2'-position in the sugar moiety thereof with Wittig's reagent. Furthermore, the compounds have remarkable antiviral activities and therefore can provide novel antiviral agents.