Indolocarbazoles: potent, selective inhibitors of human cytomegalovirus replication
摘要:
In our search for new, safer anti-HCMV agents, we discovered that the natural product Arcyriaflavin A (la) was a potent inhibitor of HCMV replication in cell culture. A series of analogues (symmetrical indolocarbazoles) was synthesised to investigate structure-activity relationships in this series against a range of herpes viruses (HCMV, VZV, HSV1, and 2). This identified a number of novel, selective and potent inhibitors of HCMV, 12,13-dihydro-2,10-difluoro-5H-indolo[2,3-a]pyrrolo[3,4-c]carbazole-5,7-(6H)-dione (Id) being the best example (IC50 = 40 nM, therapeutic index > 1450). Compounds described in this series were generally poor inhibitors of protein kinase C beta II, and no correlation was found between the ability to inhibit HCMV and the enzyme PKC. (C) 1999 Elsevier Science Ltd. All rights reserved.
Indolocarbazoles: potent, selective inhibitors of human cytomegalovirus replication
摘要:
In our search for new, safer anti-HCMV agents, we discovered that the natural product Arcyriaflavin A (la) was a potent inhibitor of HCMV replication in cell culture. A series of analogues (symmetrical indolocarbazoles) was synthesised to investigate structure-activity relationships in this series against a range of herpes viruses (HCMV, VZV, HSV1, and 2). This identified a number of novel, selective and potent inhibitors of HCMV, 12,13-dihydro-2,10-difluoro-5H-indolo[2,3-a]pyrrolo[3,4-c]carbazole-5,7-(6H)-dione (Id) being the best example (IC50 = 40 nM, therapeutic index > 1450). Compounds described in this series were generally poor inhibitors of protein kinase C beta II, and no correlation was found between the ability to inhibit HCMV and the enzyme PKC. (C) 1999 Elsevier Science Ltd. All rights reserved.
Synthesis of Indolo[2,3-a]pyrrolo[3,4-c]carbazoles via the Oxidative Cyclization of Bisindolylmaleimides with Pd(TFA)<sub>2</sub>/Cu(OAc)<sub>2</sub>
作者:Xuan Pan、Ke Wang、Bao He Guan、Zhan Zhu Liu
DOI:10.1002/jhet.2134
日期:2015.5
A new synthetic approach for the synthesis of indolo[2,3‐a]pyrrolo[3,4‐c]carbazoles based on the Cu2+/Pd2+ catalytic system is described. The optimum condition is established via a systematic screening and utilized for the synthesis of four indolocarbazole aglycones with a satisfied yield.
Bisindolylpyrrole derivatives represented by general formula [I] which are useful in inhibiting cell death and expected as being useful as preventives and remedies for the progress of various diseases in the progress and worsening of which cell death participates; and cell death inhibitors, drugs and cell/tissue/organ preservatives containing as the active ingredient these derivatives or pharmaceutically acceptable salts thereof.
A series of N-methyl-bisindolylmaleimide derivatives was synthesized and evaluated as cell death inhibitors. N-Methyl-2[1-(3-aminopropyl)-1H-indol-3-yl]-3-(1H-indol-3-yl)maleimide (21) was the most potent inhibitor of H2O2-induced necrotic death of human leukemia HL60 cells among them. (c) 2005 Elsevier Ltd. All rights reserved.