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:
Jun. 13, 1995
Filed:
Jan. 05, 1994
Hachiro Sugimoto, Ushiku, JP;
Takaharu Nakamura, Abiko, JP;
Yutaka Tsuchiya, Ushiku, JP;
Hiroyuki Sugumi, Yatabemachi, JP;
Kunizou Higurashi, Tokyo, JP;
Norio Karibe, Yatabemachi, JP;
Yoshiharu Yamanishi, Ryugasaki, JP;
Hiroo Ogura, Tsuchiura, JP;
Shin Araki, Sakuramura, JP;
Atsuhiko Kubota, Sakuramura, JP;
Michiko Ohtake, Mitsukaido, JP;
Kiyomi Tamatsu, Kamakura, JP;
Eisai Co., Ltd., Tokyo, JP;
Abstract
A novel piperidine derivative is defined by the formula (I), including a salt thereof, ##STR1## wherein R.sup.1 denotes anthraquinone, X denotes a group of the formula --(CH.sub.2).sub.n --, a group of the formula --O(CH.sub.2).sub.n --, a group of the formula --S(CH.sub.2).sub.n --, a group of the formula --NH(CH.sub.2).sub.n --, a group of the formula --SO.sub.2 NH(CH.sub.2).sub.n --, a group of the formula ##STR2## a group of the formula ##STR3## a group of the formula ##STR4## a group of the formula --CH.sub.2 NH(CH.sub.2).sub.n --, a group of the formula ##STR5## (in all the above formulas, n is an integer of 1 through 7 and R.sup.3 represents a lower alkyl group or a benzyl group), a group of the formula ##STR6## a group of the formula ##STR7## a group of the formula --O--CH.sub.2 CH.sub.2 CH.dbd. or a group of the formula ##STR8## the ring A denotes a group of the formula ##STR9## a group of the formula ##STR10## a group of the formula ##STR11## or a group of the formula ##STR12##