Synthesis and structure elucidation of 3,4-dihydroxy-2-quinolin-2-ylpyrido[3,2,1-jk]carbazol-6-ones

摘要

3,4-Dihydroxy-2-quinolin-2-ylpyrido[3,2,1-jk]carbazol-6-ones 6 were obtained by cyclocondensation of carbazole I with malonates 2 in the presence of quinoline. The assignment of the structures of 6 was performed by NMR experiments such as ID H-1, C-13 and DEPT, as well as 2D COSY, HSQC, HMBC and 1,1-ADEQUATE spectra.