Synthesis of New 3,4,5-Trisubstituted Isothiazoles as Effective Inhibitory Agents of Enteroviruses
摘要:
The synthesis and evaluation of 3,4,5-trisubstituted isothiazoles as antiviral agents led to the discovery of several compounds effective in vitro against enteroviruses polio 1 and ECHO 9. Structure-activity relationship studies revealed that a short thioalkyl chain in the 3-position and a methyl ester group in the 4-position are the structural components that, to a large extent, contribute to the positive biological profile in terms of both selectivity and low cytotoxicity. Under one-step growth conditions, methyl 3-methylthio-5-phenyl-4-isothiazolecarboxilate caused the greatest activity if added within Ih after poliovirus adsorption. These data suggest interference with early events of viral replication. (C) 1999 Elsevier Science Ltd. All rights reserved.
Synthesis of New 3,4,5-Trisubstituted Isothiazoles as Effective Inhibitory Agents of Enteroviruses
作者:Christian C.C. Cutrı̀、Adriana Garozzo、Maria A. Siracusa、Maria C. Sarvà、Angelo Castro、Ernesto Geremia、Maria R. Pinizzotto、Francesco Guerrera
DOI:10.1016/s0968-0896(98)00237-5
日期:1999.2
The synthesis and evaluation of 3,4,5-trisubstituted isothiazoles as antiviral agents led to the discovery of several compounds effective in vitro against enteroviruses polio 1 and ECHO 9. Structure-activity relationship studies revealed that a short thioalkyl chain in the 3-position and a methyl ester group in the 4-position are the structural components that, to a large extent, contribute to the positive biological profile in terms of both selectivity and low cytotoxicity. Under one-step growth conditions, methyl 3-methylthio-5-phenyl-4-isothiazolecarboxilate caused the greatest activity if added within Ih after poliovirus adsorption. These data suggest interference with early events of viral replication. (C) 1999 Elsevier Science Ltd. All rights reserved.