| 摘要 |
Camptothecin analogs (I), their enantiomers, diastereoisomers, and salts with acids and bases are new. Camptothecin analogs of formula (I), their enantiomers, diastereoisomers, and salts are new. n = 0-2; R1-R5 = H, halogen, alkyl, alkenyl, alkynyl, perhaloalkyl, 3-11C cycloalkyl, 3-11C cycloalkyl-alkyl, OH, hydroxyalkyl, alkoxy, alkoxyalkyl, alkoxycarbonyl, acyloxy, NO2, CN, aminocarbonyl (optionally substituted on the N by one or two alkyl groups), -(CH2)p-NRaRb, or -O-CO- NRaRb; or two adjacent groups of R2-R5 = -O-(CH2)t-O-; p = 0 - 6; Ra, Rb = H, alkyl, 3-11C cycloalkyl, 3-11C cycloalkyl-alkyl, acyl, optionally substituted aryl or optionally substituted arylalkyl; or NRaRb = pyrrolyl, piperidinyl, or piperazinyl each of the cyclic groups being optionally substituted; t = 1-3; R60, R70n, R80, and R90 = H, OH, alkoxy, or -O-CO-X or -O-CO-NXW; X, W = alkyl, alkenyl, alkynyl, 3-11C cycloalkyl, 3-11C cycloalkyl-alkyl, optionally substituted aryl, or optionally substituted aryl alkyl; R61, R71n, R81, and R91 = H, alkyl, alkenyl or alkynyl; or vicinal pairs may together form a bond or an oxirane group; or R60+R61, R70n+R71n, R80+R81n and/or R90+R91 = oxo or -O-(CH2)t1-O-; t1 = 1-3 with the proviso that R60, R70n, R80, R90, R61, R71n, R81, and R91 are not all H. Alkyl, alkoxy and acyl groups have 1-6C; alkenyl have 2-6C and 1-3 double bonds; alkynyl have 2-6C and 1-3 triple bonds; aryl = phenyl or naphthyl; 'substituted' on aryl or aryl alkyl groups means by one or more halogens, alkyl, alkoxy, OH, CN, NO2, amino or mono- or dialkylamino groups; 'substituted' on heterocyclic groups means by one or more alkyl, alkoxy, aryl, aryl alkyl, aryloxy and/or aryloxy alkyl groups. An Independent claim is included for the preparation of (I). |
