The use of natural product scaffolds as leads in the search for trypanothione reductase inhibitors
作者:Betty C. Galarreta、Roxana Sifuentes、Angela K. Carrillo、Luis Sanchez、Maria del Rosario I. Amado、Helena Maruenda
DOI:10.1016/j.bmc.2008.05.074
日期:2008.7
n-9-yl)propyl]am ine (15) and 1,3-bis[3-(dimethylamino)propyl]-1,5-dihydro-2H-pyrimido[4,5-b][1,4]benzothiazine -2,4(3H)-dione (21), with K(i) values of 35.1+/-3.5microM and 26.9+/-1.9microM, respectively. Aspidospermine (25) inhibited T. cruzi TryR with a K(i) of 64.6+/-6.2microM. None of the compounds inhibited glutathione reductase. Their toxicity toward promastigotes of Leishmania amazonensis was
评价了二十三种杂环化合物作为锥虫硫磷还原酶抑制剂的潜力。结果,已确定了harmaline,10-thiaisoalloxazine和Aspidospermine框架是克氏锥虫锥虫亚扑索还原酶抑制剂的基础。两种新化合物显示出中等强度的线性竞争抑制作用,即N,N-二甲基-N- [3-(7-甲氧基-1-甲基-3,4-二氢-9H-β-咔啉-9-基)丙基]胺(15)和1,3-双[3-(二甲基氨基)丙基] -1,5-二氢-2H-嘧啶基[4,5-b] [1,4]苯并噻嗪-2,4(3H)-二酮(21),其K(i)值分别为35.1 +/- 3.5microM和26.9 +/- 1.9microM。曲霉精(25)以64.6 +/- 6.2microM的K(i)抑制克氏锥虫TryR。这些化合物均不抑制谷胱甘肽还原酶。评估了它们对亚马逊利什曼原虫前鞭毛体的毒性。