CaSR antagonist

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Ester doai

Reexamination Certificate

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Details

C514S557000, C514S567000, C514S576000, C562S400000, C564S305000

Reexamination Certificate

active

11286378

ABSTRACT:
The present invention provides a compound having a calcium-sensitive receptor antagonistic action, a pharmaceutical composition containing the compound, particularly a calcium receptor antagonist and a therapeutic drug for osteoporosis. A compound represented by the following formula (1), a pharmaceutically acceptable salt thereof or an optically active form thereof:wherein each symbol is as defined in the description.

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Co-pending U.S. Appl. No. 10/830,480.
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