Title of Invention

NOVEL NAPHTHALENE DERIVATIVES

Abstract Naphthalene derivatives of the formula [I]: wherein R<SUP>l</SUP> and R<SUP>2</SUP> are the same or different and are each H, protected or unprotected OH, one of R<SUP>3</SUP> and R<SUP>4</SUP> is protected or unprotected hydroxymethyl, and the other 'is H, lower alkyl, or protected or unprotected hYdrOxYFthYI, R<SUP>5</SUP> and R<SUP>6</SUP> are the same or different and are each H, substituted or unsubstituted lower alkyl, substituted or unsubstituted phenyl or protected or unprotected , NH<SUB>2</SUB>, or both combine together with the adjacent N to form substituted or unsubstituted heterocyclic group, and pharmaceutically acceptable salts thereof, these compounds showing excellent bronchoconstriction inhibitory activity, and hence, being useful in the prophylaxis or treatment of asthma.
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Documents:

http://ipindiaonline.gov.in/documents/1035-MAS-1996/1035-mas-1996.rtf


Patent Number 240991
Indian Patent Application Number 1035/MAS/1996
PG Journal Number 25/2010
Publication Date 18-Jun-2010
Grant Date 14-Jun-2010
Date of Filing 12-Jun-1996
Name of Patentee MITSUBISHI TANABE PHARMA CORPORATION
Applicant Address 2-10, DOSHO-MACHI 3-CHOME, CHUO-KU, OSKA 541-8505,
Inventors:
# Inventor's Name Inventor's Address
1 SHINSUKE YAMAGATA 5-10-308, WAKAYAMADAI 1-CHOME, SHIMAMOTO-CHO, MISHIMA-GUN, OSAKA-FU,
2 TATUSZO UKITA 6-611-202, KOYO-CHO-NAKA 6-CHOME, HIGASHINADA-KU, KUBE-SHI, HYOGO-KEN,
3 KATSUO IKEZAWA 28-28, KIZAKI 2-CHOME, URAWA-SHI, SAITAMA-KEN,
PCT International Classification Number C07D 401/04
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 149288/1995 1995-06-15 Japan