Title:
BENZOFURAN DERIVATIVES
Document Type and Number:
WIPO Patent Application WO/1998/022452
Kind Code:
A1
Abstract:
Benzofuran derivatives represented by general formula (I) and pharmacologically acceptable salts thereof wherein R?1� is hydrogen or substituted or unsubstituted lower alkyl; R?2�, R?3� and R?4� are each independently hydrogen or the like; R?5a� is hydrogen, substituted or unsubstituted lower alkyl, cycloalkyl, polycycloalkyl, substituted or unsubstituted aryl or the like, and R?5b� is substituted or unsubstituted lower alkyl, cycloalkyl, polycycloalkyl or the like, or alternatively R?5a� and R?5b� may be united to form a substituted or unsubstituted nitrogenous heterocyclic group; and R?6a� and R?6b� are each independently hydrogen, substituted or unsubstituted lower alkyl, substituted or unsubstituted heteroarylalkyl or substituted or unsubstituted aralkyl, or alternatively R?6a� and R?6b� may be united to form a substituted or unsubstituted nitrogenous heterocyclic group.
Inventors:
OHSHIMA ETSUO (JP)
MATSUZAKI TOHRU (JP)
IIDA KYOICHIRO (JP)
ICHIMURA MICHIO (JP)
MATSUZAKI TOHRU (JP)
IIDA KYOICHIRO (JP)
ICHIMURA MICHIO (JP)
Application Number:
PCT/JP1997/004212
Publication Date:
May 28, 1998
Filing Date:
November 19, 1997
Export Citation:
Assignee:
KYOWA HAKKO KOGYO KK (JP)
OHSHIMA ETSUO (JP)
MATSUZAKI TOHRU (JP)
IIDA KYOICHIRO (JP)
ICHIMURA MICHIO (JP)
OHSHIMA ETSUO (JP)
MATSUZAKI TOHRU (JP)
IIDA KYOICHIRO (JP)
ICHIMURA MICHIO (JP)
International Classes:
C07D307/86; (IPC1-7): C07D307/84; A61K31/34; A61K31/40; A61K31/44; A61K31/445; A61K31/495; A61K31/535; C07D405/12
Other References:
CHEMICAL ABSTRACTS, Vol. 64, No. 12, 6 June 1966, (Columbus, Ohio, USA), Abstract No. 17518b, M. DESCAMPS et al., "The Benzofuran Series...."; & CHIM. THERAP., 1966, (2), 87-97 (Fr).
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