作者:Janusz J. Kulagowski、Christopher J. Moody、Charles W. Rees
DOI:10.1039/c39820000548
日期:——
Thermal and photochemical decomposition of benzotriazoles (3) gives carbazoles (4) and (5), and cyclopentaquinolines (6), the formation of these products being rationalised by rearrangements in 4aH-carbazole intermediates (7); one proposed intermediate (11c) has been intercepted in an extended cycloaddition reaction with acrylonitrile.
The present invention provides compounds of formula I:
1
wherein R
1
, R
2
, X and Y have any of the values defined in the specification, as well as pharmaceutical compositions comprising the compounds. The invention also provides therapeutic methods as well as processes and intermediates useful for preparing compounds of formula (I).