Patent EP-0978517-A2 (EP)
Inventor: KUEFNER-MUEHL ULRIKE
IPC: A61K31/519
Filed: 1997-07-17
Abstract: 1,2,4-TriazoloÄ1,5-aÜpurin-9-one derivatives of formula (I), and their racemates, enantiomers, diastereomers and/or acid addition salts are new. R1 or R3 and R4 or R5 = H, Z, COOZ, SO2Z, SO2A, COZ, aralkyl, aralkenyl, aralkynyl, A, COOA, SO2A, COA, CONHR or (all optionally substituted) benzyloxycarbonyl, benzylsulphonyl, 4-8C cycloalkenyl, 6-8C cycloalkynyl, benzyl, or benzylcarbonyl; Z = 1-10C alkyl, 3-8C cycloalkyl, 6-10C aryl, heteroaryl (all optionally substituted), 2-10C alkenyl or 2-10C alkynyl; A = optionally substituted 5-7 membered heterocycle (containing one or more of N, S and O as heteroatom(s) and bonded via C); R = H, or phenyl, benzyl or 3-6C cycloalkyl (all optionally substituted), or alkyl, alkenyl or alkynyl (all of up to 10C and optionally substituted by OH, optionally substituted phenyl or optionally substituted amino); R2 = H, OH, NH2, halo, NO2, CF3, COOH, SH, 1-6C alkylthio, SO2Z, benzylsulphonyl, OSO2Z, NHSO2Z, CONHZ, di-(1-10C alkyl or 2-10C alkenyl)-aminocarbonyl, N-(1-10C alkyl)-N-(2-10C alkenyl or alkynyl)-aminocarbonyl, NHCOOZ, OCONHZ, C(=NH)NHZ, OZ, COOZ, OCOZ, SZ, optionally substituted amino, preferably NR8R9, or (all optionally substituted) 1-10C alkyl, 2-10C alkenyl, 2-10C alkynyl, 3-8C cycloalkyl, 5-8C cycloalkanone, 4-8C cycloalkenyl, 6-8C cycloalkynyl, 6-10C aryl, aryl-(1-6C)alkyl, aryl-(2-6C)alkenyl, aryl-(2-6C)alkynyl, cycloalkyl-(1-6C)alkyl, cycloalkyl-(2-6C)alkenyl, cycloalkyl-(2-6C)alkynyl, 5-7 membered heterocycle (containing one or more of O, S and optionally substituted N as heteroatom(s) and linked via C- or N- or via a 1-6C alkyl, 2-6C alkenyl or 2-6C alkynyl bridge), or (all optionally substituted) 1-10C alkyl, 2-10C alkenyl, 2-10C alkynyl, 3-8C cycloalkyl, 5-8C cycloalkanone, 4-8C cycloalkenyl, 6-8C cycloalkynyl, 6-10C aryl, aryl-(1-6C)alkyl, aryl-(2-6C)alkenyl, aryl-(2-6C)alkynyl, cycloalkyl-(1-6C)alkyl, cycloalkyl-(2-6C)alkenyl, cycloalkyl-(2-6C)alkynyl, 5-7 membered heterocycle (containing one or more of O, S and optionally substituted N as heteroatom(s) and linked via C- or N- or via a 1-6C alkyl, 2-6C alkenyl or 2-6C alkynyl bridge), methylenedioxyphenyl, ethylenedioxyphenyl, fluorenyl or optionally substituted group of formula (a)-(e); R6 = as for R2 or CHO; x = 1 or 2; y = 0-2; dotted lines in (a) = optional bonds; Q = H or 1-6C alkyl, but cannot be alkyl if the ring system in (a) contains two double bonds; Y = bond, 1-6C alkylene, 2-6C alkenylene or 2-6C alkynylene; R8, R9 = 1-10C alkyl, 2-10C alkenyl or 2-10C alkynyl (optionally substituted by OH, optionally substituted phenyl, optionally substituted benzyl, optionally substituted amino or 1-6C alkoxy), H, optionally substituted 3-6C cycloalkyl, (CH2)mNHCOOR4; or NR8R9 = saturated or unsaturated 5- or 6- membered ring (optionally containing another O, S or N heteroatom and optionally substituted by 1-4C alkyl, (CH2)nPh, (CH2)nNH2, oxo, ketal (preferably OCH2CH2O), (CH2)nNH-(1-4C alkyl), (CH2)nN(1-8C alkyl)2, (CH2)nNHCOOR10, halo, OR10, CN, NO2, NH2, CH2NR8R9 (sic), OH, COOH, SO3H, COOR10, CONR8R9 (sic) or SO2R10); m = 1-4; n = 2-4; R10 = H, 1-4C alkyl, 2-4C alkenyl, 2-4C alkynyl, or benzyl or phenyl (both optionally substituted by one or more OMe).