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. 17, 1997
Filed:
Jul. 01, 1994
Senju Pharmaceutical Co., Ltd., Osaka, JP;
Takeda Chemical Industries, Ltd., Osaka, JP;
Abstract
This invention relates to an ocular hypotensive agent which comprises a compound represented by the formula: ##STR1## wherein R.sup.1 represents hydrogen or an optionally substituted hydrocarbon residue that may be bound via a hetero atom; R.sup.2 represents hydrogen or a hydrocarbon residue that may have a substituent; R.sup.3 represents a group capable of forming an anion or a group capable of changing thereto; X is a covalent bond between the 2 benzene rings or a spacer having a chain length of 1 to 2 atoms as the linear moiety between the adjoining phenylene group and phenyl group; n represents 1 or 2; ring A is a benzene ring having 1 or 2 optional substituents in addition to the group represented by COOR.sup.2, or a pharmaceutically acceptable salt thereof.