C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/215, 167/244
C07D 311/68 (2006.01) A61K 31/35 (2006.01) A61K 31/535 (2006.01) C07D 311/70 (2006.01) C07D 413/06 (2006.01)
Patent
CA 2022882
ABSTRACT A compound of the formula (I): Image (I) or a pharmaceutically acceptable salt thereof, wherein: R1 is a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group or a R7-CO- group (wherein R7 is a C1-6 alkyl group, a phenyl group, a C2-6 alkenyl group which may be substituted by a phenyl group, or a C1-6 alkoxy group) R2 is a hydrogen atom, a substituted or unsubstituted C1-8 alkyl group, or a phenyl group; R3 is a hydrogen atom, and R4 is a hydroxyl group, or R3 and R4 together form a bond; each of R5 and R6 is a C1-4 alkyl group; and Y is a cyano group, a halogen atom, a nitro group, a C1-6 alkyl group, a C2-6 alkynyl group, a C1-6 alkylcarbonyl group, a C1-6 alkoxy group, a di-C1-6 alkylaminocarbonyl group, an aryl group, a C1-6 alkoxycarbonyl group, a carboxyl group or a morpholinocarbonyl group.
Iida Yasuhito
Ishiyama Nobuo
Ishizaka Yoshihiro
Murai Takeshi
Ohtuka Katuyuki
Kaken Pharmaceutical Co. Ltd.
Marks & Clerk
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