Patent MX-PA03009362-A (MX)
Title: [3,4-a:3,4-c]carbazole derivatives, process for their preparation and pharmaceutical compositions containing them.
Inventor: BRUNO PFEIFFER
IPC: A61K31/40
Filed: 2003-10-13
Abstract: (3,4-a:3,4-c) Carbazole derivatives (I), their enantiomers, diastereoisomers and salts with acids and bases. (3,4-a:3,4-c) Carbazole derivatives of formula (I), their enantiomers, diastereoisomers and salts with acids and bases A = ring that is saturated, partially, or fully unsaturated, and that may be aromatic; W' = phenyl or pyridinyl; Z' = U'-V', methylene dioxy or ethylenedioxy; U' = bond, 1-6C alkylene, 2-6C alkenylene, optionally substituted by 1 or 2 halo or OH groups; V' = H, halo, CN, NO2, azido, 1-6C alkyl or alkoxy, aryl, aralkyl, OH, aryloxy, arylalkoxy, formyl, COOH, NH2CO, NR3R4, -C(O)-T1, -C(O)-NR3-T1, NR3C(O)T1, -O-C(O)-T1, -C(O)-OT1, -NR3-T2-NR3R4, -NR3-T2-OR3, -NR3-T2-COOR3, -O-T'2-NR3R4, -O-T'2-OR3, -O-T'2-COOR3, or -S(O)t-R3; R3, R4 = H, 1-6C alkyl, aryl, aralkyl or together form 5-10 membered saturated mono or bicyclic heterocycle, optionally with a second hetero atom (O or N) and optionally substituted by alkyl, aryl, aralkyl, OH, alkoxy, amino mono- or dialkyla mino; T1 = alkyl (optionally substituted by -OR3, -NR3R4, -COOR3, -C(O)R3, or -C(O)NR3R4), 2-6C alkenyl, optionally substituted; T2 = 1-6C alkylene; T'2 = 1-6C alkylene optionally substituted by one or more OH groups; t = 0, 1, or 2; Q1 = O or NR2; R2 = H, 1-6C alkyl, aryl, aralkyl, cycloalkyl, cycloalkyl alkyl, -OR3, -NR3R4, -O-T2-NR3R4, NR3-T2-NR3R4, mono- or di-hydroxyalkylamino, -C(O)R3, -NH-C(O)-R3, or 1-6C alkylene optionally substituted by halo, CN, NO2, -OR3, -NR3R4, -COOR3, -C(O)R3, hydroxyalkylamino, dihydroxyalkylamino, -C(O)-NHR3; Q2 = O or NR'2; R'2 = H, 1-6C alkyl, aryl, aralkyl, cycloalkyl, cycloalkyl alkyl, -OR3, -NR3R4, -O-T2-NR3R4, NR3-T2-NR3R4, mono- or di-hydroxyalkylamino, -C(O)R3, -NH-C(O)-R3, or 1-6C alkylene optionally substituted by halo, CN, NO2, -OR3, -NR3R4, -COOR3, -C(O)R3, hydroxyalkylamino, dihydroxyalkylamino, -C(O)-NHR3; X1 = H, OH, alkoxy, mercapto, alkylthio; Y1 = H or X1 and Y1 together form carbonyl or thiocarbonyl; X2 = H, OH, alkoxy, mercapto, al kylthio; Y2 = H or X2 and Y2 together form carbonyl or thiocarbonyl; X'1 = H, OH, alkoxy, mercapto, alkylthio; Y'1 = H or X'1 and Y'1 together form carbonyl or thiocarbonyl; X'2 = H, OH, alkoxy, mercapto, alkylthio; Y'2 = H or X'2 and Y'2 together form carbonyl or thiocarbonyl; R1 = H, 1-6C alkyl (optionally substituted by one or more OH, alkoxy, hydroxyalkoxy, or NR3R4 groups) or it is a group of formula (a); Ra - Rd = a bond, H, halo, OH, alkoxy, aryloxy, arylalkoxy, alkyl, aralkyl, aryl, -NR3R4, azido, -N=NR3, or -O-C(O)-R5; R5 = alkyl optionally substituted by one or more halo, OH, amino, mono- or dialkylamino, aryl, aralkyl, cycloalkyl, or heterocycloalkyl; Re = methylene or -U1-Ra; U1 = a bond or methylene; and n = 0 or 1. with the proviso that the following compounds are not within the scope of (I): 3b, 6a, 6b, 7-tetrahydro-1H-dipyrrolo(3,4-a:3,4-c) carbazole-1,3,4,6(2H, 3aH, 5H)-tetrone; 5-ethyl-3b, 6a, 6b, 7-tetrahydro-1H-dipyrrolo(3,4-a:3,4-c) carbazole-1,3,4,6(2H, 3aH, 5H)- tetrone; 3b, 6a, 7, 11c-tetrahydro-1H-dipyrrolo(3,4-a:3,4-c) carbazole-1,3,4,6(2H, 3aH, 5H)-tetrone; and 3b, 6a, 6b, 7-tetrahydrofuro(3,4a)pyrrolo(3,4-c) carbazole-1,3,4,6(2H, 3aH, 5H)-tetrone.