Synthesis of new and potent analogues of anti-tuberculosis agent 5-nitro-furan-2-carboxylic acid 4-(4-benzyl-piperazin-1-yl)-benzylamide with improved bioavailability
作者:Rajendra P. Tangallapally、Robin E.B. Lee、Anne J.M. Lenaerts、Richard E. Lee
DOI:10.1016/j.bmcl.2006.02.048
日期:2006.5
bioavailability, a new series of analogues was successfully synthesized using three modification schemes: replacement of the benzyl group on the piperazine C-ring with carbamate and urea functional groups; introduction of a nitrogen atom into the aromatic ring-B; and expansion of the ring-B to a bicyclic tetrahydroisoquinoline moiety. These modifications retained strong activity and in some case gained superior
以前,在我们的抗结核药物发现计划中已经确定了先导化合物5-硝基呋喃-2-羧酸4-(4-苄基哌嗪-1-基)-苄基酰胺。尽管该化合物具有出色的体外活性,但由于其结构特征导致快速的代谢裂解和吸收不良,因此未能达到预期的体内分布,因此限制了其生物利用度。为了提高生物利用度,使用三种修饰方案成功合成了一系列新的类似物:用氨基甲酸酯和尿素官能团取代哌嗪C环上的苄基;将氮原子引入芳族环-B中;环B膨胀成双环四氢异喹啉部分。