C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/231, 260/276
C07D 471/04 (2006.01) A61K 31/44 (2006.01)
Patent
CA 1254210
-1- Abstract of the Disclosure: TETRAHYDRO-.beta.-CARBOLINE DERIVATIVES AND PROCESS FOR THE PREPARATION THEREOF Novel tetrahydro-.beta.-carboline derivatives of the formula: Image wherein R1 is carboxyl, a lower alkoxycarbonyl, carbamoyl, an N,N-di-lower alkylcarbamoyl, an N-(phenyl-substituted lower alkylidenamino)carbamoyl, a [N,N-di(lower alkyl)- amino]-lower alkyl, or a nitrogen-containing monocyclic heterocyclic group; R2 is hydrogen atom, a lower alkyl, or a hydroxy-lower alkyl group, or R2 is combined with R1 to form a group: -CO-O-CH2-; R3 is hydrogen atom, a lower alkyl, a phenyl-lower alkyl, or a group: -CSS-R4; R4 is hydrogen atom, an alkyl, or a group: -(CH2)nY1; n is 1 or 2, Y1 is a lower alkenyl, a phenyl-substituted lower alkenyl, an N,N-di(lower alkyl)amino, a lower alkylmercapto, a lower alkoxycarbonyl, benzoyl, naphthyl, a cycloalkyl, a monocyclic heterocyclic group, or a substituted or unsubstituted phenyl, which have excellent - 102 - activities for alleviating, curing and preventing hepatic damages and are useful as a therapeutic or prophylactic agent for hepatic diseases, and processes for the preparation thereof, and a pharmaceutical composition containing the above compound as an active ingredient.
467362
Iijima Ikuo
Matsumoto Mamoru
Matsuoka Yuzo
Saiga Yutaka
Toshikazu Miyagishima
Kirby Eades Gale Baker
Tanabe Seiyaku Co. Ltd.
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