Design, Synthesis and Structure-Activity Relationship of Functionalized Tetrahydro-β-carboline Derivatives as Novel PDE5 Inhibitors
作者:Nermin S. Ahmed、Bernard D. Gary、Hethar N. Tinsley、Gary A. Piazza、Stefan Laufer、Ashraf H. Abadi
DOI:10.1002/ardp.201000236
日期:2011.3
Starting from tadalafil as a template, a series of functionalized tetrahydro‐β‐carboline derivatives have been prepared and identified as novel potent and selective PDE5 inhibitors. Replacing the 3,4‐methylenedioxyphenyl at position 6 of tadalafil, together with elongation of the N2‐methyl substituent and manipulation of the stereochemical aspects of the two chiral carbons led to the identification
以他达拉非为模板,制备了一系列功能化的四氢-β-咔啉衍生物,并鉴定为新型强效选择性 PDE5 抑制剂。替换他达拉非第 6 位的 3,4-亚甲二氧基苯基,连同 N2-甲基取代基的延伸和两个手性碳的立体化学方面的操作,导致鉴定了化合物 XXI,一种高效的 PDE5 抑制剂(IC50 = 3毫)。与 PDE3B、PDE4B 和 PDE11A 相比,化合物 XXI 对 PDE5 也具有高度选择性,对 PDE5 的选择性指数为 52 和 235,而不是分别以 cAMP 和 cGMP 为底物的 PDE11。