D. Schollmeyer et al., SYNTHESIS AND CRYSTAL-STRUCTURES OF INDOLE-DERIVATIVES AND INDOLO[2,3-A]CARBAZOLES AS BUILDING-BLOCKS TO OR AS PROTEIN-KINASE-C INHIBITORS, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 52(10), 1997, pp. 1251-1258
The functionalization reactions of 2,2'-bisindolyls with electrophiles
and dienophiles gave rise to a group of new protein kinase C inhibito
rs. Rationalization of structure activity relationships and of some me
chanistical aspects concerning the synthesis X ray crystal structures
are described for 2,2'-bisindolyl derivatives 1-3 and 6 and for indolo
[a]carbazoles 4 and 5.