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. 12, 1999
Filed:
Dec. 04, 1997
Tatsuzo Ukita, Kobe, JP;
Masakatsu Sugahara, Suita, JP;
Katsuo Ikezawa, Urawa, JP;
Hideo Kikkawa, Okegawa, JP;
Kazuaki Naito, Tokyo-to, JP;
Tanabe Seiyaku Co., Ltd., Osaka, JP;
Abstract
A pyridine derivative of the formula (I): ##STR1## wherein A is group of the following formulae: ##STR2## (R.sup.1 and R.sup.2 are each H, or protected or unprotected OH, R.sup.31, R.sup.41 and R.sup.42 are protected or unprotected hydroxymethyl, R.sup.32 is H, lower alkyl, or protected or unprotected hydroxymethyl, R.sup.33 is substituted or unsubstituted lower alkyl, and the dotted line means the presence or absence of a double bond), R.sup.5 and R.sup.6 are H, or protected or unprotected amino, or both combine together with the adjacent nitrogen to form substituted or unsubstituted heterocycle, or a pharmaceutically acceptable salt thereof, these compounds showing excellent bronchoconstriction inhibitory activity and/or anti-inflammatory activity of airway, and being useful in the prophylaxis or treatment of asthma.