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:
Oct. 17, 1995
Filed:
Nov. 10, 1993
Toyofumi Yamaguchi, Hachioji, JP;
Takanori Miyashita, Choshi, JP;
Shinji Sakata, Choshi, JP;
Toichi Abiru, Sawara, JP;
Akira Matsuda, Sapporo, JP;
Tohru Ueda, Sapporo, JP;
Kentaro Kogi, Fukushima, JP;
Yamasa Shoyu Kabushiki Kaisha, both of, JP;
Toa Eiyo Ltd., both of, JP;
Abstract
The present invention relates to a novel compound represented by the following formula [I] which is useful as a synthetic intermediate of a 2-alkynyladenosine. The present invention also relates to a process for producing the compound and a process for producing a 2-alkynyladenosine [IV] by way of the compound. Further, the present invention relates to a 2-alkynyladenosine derivative represented by the following formula [V] having excellent storage stability and, to a method of storing the 2-alkynyladenosine in the form of that derivative. ##STR1## [I] A=a leaving group, [II] A=NH.sub.2, [V] A=NHR.sup.4, wherein R.sup.1 through R.sup.4 represent a hydrogen atom or a protective group, and n denotes an integer of 1 to 15, provided that R.sup.1 through R.sup.4 do not represent a hydrogen atom simultaneously.