Total syntheses of makaluvamines A, B, C and D, metabolites of the fijian sponge Zyzza cf. marsailis exhibiting inhibitory activities against topoisomerase II
作者:Takao Izawa、Shigeru Nishiyama、Shosuke Yamamura
DOI:10.1016/s0040-4039(00)75999-5
日期:1994.1
Totalsyntheses of the tetrahydropyrroloquinoline-alkaloids, makaluvamines A, B, C and D (1, 2, 3 and 4) have successfully been carried out starting from the appropriate derivatives (5, 8 and 10).
and N-9 yielded makaluvamine J and several analogs. A structure–activity relationship (SAR) analysis highlighted the significance of the lipophilic side chain at N-9 for the growth inhibitory activity of PANC-1 cells. The modest alkyl group at N-5 was found to improve selectivity against other cancer cells. Among the prepared analogs, the tryptamine analog 24 showed potent and selective cytotoxicity