Substituted bis-indole derivatives useful as contrast...

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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C514S185000, C548S455000, C548S402000, C548S403000, C540S474000

Reexamination Certificate

active

07081472

ABSTRACT:
Metal-complexable substituted bis-indole derivatives comprising the structure shown in formula (I) hereunder: enantiomers and pharmaceutically acceptable salts thereof and metal complexes thereof, wherein L, R1, R2, R3, C1, C2, m, n, p, q and r are as defined in claim1for use as constrats agents.

REFERENCES:
patent: 0887348 (1998-12-01), None
patent: WO 92/11232 (1992-07-01), None
patent: WO 98/05625 (1998-02-01), None
Database Crossfile Beilstein, Accession No. XP002192307, vol. 26, No. 6, 1992, pp. 492-496.
Database Crossfile Beilstein, Accession No. XP002192308, vol. 7, 1924, p. 583.
Database Crossfile Beilstein, Accession No. XP002192309, vol. 80, 1959, p. 407.
Database Caplux, Accession No. XP002192310, vol. 19, No. 5, 1982, pp. 193-204.

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