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:
Mar. 02, 1993
Filed:
Jul. 05, 1990
Nobuto Minowa, Yokohama, JP;
Tomoya Machinami, Yokohama, JP;
Seiji Shibahara, Yokohama, JP;
Keiichi Imamura, Yokohama, JP;
Michiaki Iwata, Yokohama, JP;
Masaru Shimura, Yokohama, JP;
Shigeharu Inouye, Yokohama, JP;
Meiji Seika Kabushiki Kaisha, Tokyo, JP;
Abstract
A 4-acyloxyquinoline derivative represented by the general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a C.sub.1 -C.sub.18 alkyl, C.sub.2 -C.sub.18 alkenyl, C.sub.3 -C.sub.10 cycloalkyl which may be optionally substituted, phenylloweralkyl, phenoxyloweralkyl, aryl group, a group OR.sup.4, where R.sup.4 represents a lower alkyl or aryl group, or a group ##STR2## where X represents an oxygen or a sulphur atom; R.sup.2 represents a hydrogen atom, a lower alkyl alkyl group or a group --COOR.sup.5 where R.sup.5 represents a hydrogen atom or a lower alkyl group; R.sup.3 represents a hydrogen atom, a C.sub.1 -C.sub.10 alkyl or C.sub.2 -C.sub.10 alkenyl group, provided that R.sup.1 does not represent OR.sup.4 when R.sup.2 is a hydrogen atom and R.sup.3 is methyl; R.sup.2 and R.sup.3 together represent a group (CH.sub.2).sub.m, wherein m is 3 or 4, and W represents a hydrogen atom, 1 to 4 halogen atoms, a lower alkyl or lower alkoxy group which may be the same or different and with which the left-hand nucleus is substituted, provided that the compound wherein R.sup.1 represents methyl, R.sup.2, R.sup.3 and W each represent a hydrogen atom is excluded.