Copper‐Catalyzed Synthesis of 3‐NO
<sub>2</sub>
Quinolines from
<i>o</i>
‐Azidobenzaldehyde and Nitro‐olefins and its Application in the Concise Synthesis of Quindolines
An efficient copper‐catalyzed cyclization of o‐azidobenzaldehyde and nitro‐olefins was developed. This reaction proceeds under solvent‐free conditions and displays broad functional group compatibility and affords 3‐nitroquinolines in good to excellent yields. The synthetic utility of this strategy is illustrated by the concise construction of quindolines in only three steps, which renders the reaction
Identification of bis-quindolines as new antiinfective agents
作者:Leroy G. Mardenborough、Xue Y. Zhu、Pincheng Fan、Melissa R. Jacob、Shabana I. Khan、Larry A. Walker、Seth Y. Ablordeppey
DOI:10.1016/j.bmc.2005.04.008
日期:2005.6
Several N-substituted quindolines were made to further evaluate the role of N-alkylation on the activity of indoloquinolines as antifungal agents. While N-5 substitution is required for these activities, N-10 alkylation alone leads to inactive products but is tolerated in the presence of N-5 alkyl groups. It was also discovered that bis-quindolines appear to have a more expanded antimicrobial spectrum and lower cytotoxicity than their monomeric counterparts. (c) 2005 Elsevier Ltd. All rights reserved.
Substituted Indoloquinolines as New Antifungal Agents
作者:Seth Y Ablordeppey、Pingchen Fan、Shouming Li、Alice M Clark、Charles D Hufford
DOI:10.1016/s0968-0896(01)00401-1
日期:2002.5
Cryptolepine (2) possesses desirable properties to serve as a lead in developing new antifungal agents. Using SAR techniques, several analogues of cryptolepine were designed to increase potency and to broaden the antifungal spectrum over several opportunistic microorganisms. A number of 2-substituted indoloquinolines have been synthesized and evaluated in antifungal screens and several have been shown to increase potency and expand the antifungal spectrum of cryptolepine. Comparison of MICs of a number of these analogues with standard antifungal agents, shows them to be comparable to Amphotericin B and Ketoconazole. (C) 2002 Elsevier Science Ltd. All rights reserved.