Design, Synthesis and Evaluation of Trisubstituted Thiazoles Targeting Plasmodium Falciparum Cysteine Proteases
作者:P. Mallikarjun Goud、Anjaneyulu Sheri、Prashant V. Desai、E. Blake Watkins、Babu Tekwani、Yogesh Sabnis、Jiri Gut、Philip J. Rosenthal、Mitchell A. Avery
DOI:10.1007/s00044-005-0126-y
日期:2005.2
falcipains, have been established as novel targets for antimalarial drug design. Using the de novo design approach, several trisubstituted thiazole analogs were generated as potential inhibitors of these enzymes. A general and convenient synthetic approach for these novel trisubstituted thiazoles is reported here. Substituents at the 4th and 5th positions of the target thiazoles were introduced by a Hantzsch
该 恶性疟原虫 半胱氨酸蛋白酶,falcipains,已被确立为抗疟疾药物设计的新靶点。使用 从头 设计方法,产生了一些三取代的噻唑类似物作为这些酶的潜在抑制剂。本文报道了这些新颖的三取代噻唑的通用且方便的合成方法。通过Hantzsch反应引入目标噻唑的第4位和第5位取代基,并通过Sandmeyer反应,甲酰化和Wittig烯化反应延长第二个位置的链。 体外 酶抑制研究确定了三种抑制剂( 14,16,23 )中的一种( 14 )显示出对falcipain-2和falcipain-3的双重活性,IC 50值分别为6.6和29.4μM 。