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:
Nov. 24, 1998
Filed:
Jan. 17, 1997
Masaru Ubasawa, Kanagawa, JP;
Kouichi Sekiya, Kanagawa, JP;
Hideaki Takashima, Kanagawa, JP;
Naoko Ueda, Kanagawa, JP;
Satoshi Yuasa, Kanagawa, JP;
Naohiro Kamiya, Kanagawa, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A phosphonate nucleotide compound having antiviral activity and is useful for an orally available and highly safe antiviral agent, which is represented by the following formula (I): ##STR1## wherein R.sup.1 represents hydrogen, a C.sub.1 -C.sub.6 alkoxy, a halogen-substituted C.sub.1 -C.sub.4 alkoxy, halogen, amino, or nitro; R.sup.2 and R.sup.3 independently represent hydrogen, a C.sub.1 -C.sub.22 alkyl, an acyloxymethy, an acylthioethyl, or a halogen-substituted ethyl; R.sup.4 represents hydrogen, a C.sub.1 -C.sub.4 alkyl, a C.sub.1 -C.sub.4 hydroxyalkyl, or a halogen-substituted C.sub.1 -C.sub.4 alkyl; and X represents carbon or nitrogen.