Tryptophan derivative and application thereof

Details Tryptophan derivative and application thereof Tryptophan derivative and application thereof

2008-01-17

2010-02-09

Shiao, Rei-Tsang (Department: 1626)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C548S496000

Reexamination Certificate

active

07659304

ABSTRACT:
A compound represented by the following formula (I) or a salt thereof is provided:wherein X represents a halogen atom; R1represents a hydrogen atom, substituted or unsubstituted C1-6alkyl group, substituted or unsubstituted C2-6alkenyl group, substituted or unsubstituted C2-6alkynyl group, substituted or unsubstituted aromatic group, substituted or unsubstituted aralkyl group, substituted or unsubstituted acyl group, substituted or unsubstituted arylsulfonyl group, substituted or unsubstituted C1-6alkylsulfonyl group, substituted or unsubstituted C2-7alkoxycarbonyl group, or hydroxyl group; R2represents a substituted or unsubstituted C1-21alkyl group; R3, R5, and R6are the same or different and represent a hydrogen atom or halogen atom; R4represents a hydrogen atom or substituted or unsubstituted C1-6alkyl group; and R7represents a hydrogen atom or substituted or unsubstituted C1-21hydrocarbon group. Also provided is a therapeutic drug for osteoporosis and an osteoblast activator comprising the compound or a salt thereof.

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