β-amyloid protein production/secretion inhibitor

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C546S339000, C546S268100, C546S304000, C514S336000

Reexamination Certificate

active

10500156

ABSTRACT:
Provided are novel compounds having an inhibitory activity against production or secretion of β-amyloid protein. They embrace compounds represented by the following formula (1):and capable of being replaced with a variety of substituents; and salts thereof, and solvates of any one of them.

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