Antagonists of human CCR5 receptor containing 4-(pyrazolyl)piperidine side chains. Part 2: Discovery of potent, selective, and orally bioavailable compounds
作者:Dong-Ming Shen、Min Shu、Christopher A. Willoughby、Shrenik Shah、Christopher L. Lynch、Jeffrey J. Hale、Sander G. Mills、Kevin T. Chapman、Lorraine Malkowitz、Martin S. Springer、Sandra L. Gould、Julie A. DeMartino、Salvatore J. Siciliano、Kathy Lyons、James V. Pivnichny、Gloria Y. Kwei、Anthony Carella、Gwen Carver、Karen Holmes、William A. Schleif、Renee Danzeisen、Daria Hazuda、Joseph Kessler、Janet Lineberger、Michael D. Miller、Emilio A. Emini
DOI:10.1016/j.bmcl.2003.12.005
日期:2004.2
Modifications of the alkyl acetic acid portion and the phenyl on pyrrolidine in our lead pyrazole compound 1 afforded the isopropyl compound 9. This compound is a potent CCR5 antagonist showing good in vitro antiviral activity against HIV-1, an excellent selectivity profile, and good oral bioavailability in three animal species. During this investigation, a new method for the preparation of alpha-
在我们的吡唑化合物先导化合物1中烷基乙酸部分和吡咯烷上的苯基进行修饰,得到异丙基化合物9。该化合物是有效的CCR5拮抗剂,对HIV-1表现出良好的体外抗病毒活性,出色的选择性和良好的口服性三种动物的生物利用度。在该研究过程中,发现了一种新的方法,该方法使用三氟甲磺酸银从吡咯烷和α-溴-α-α,二烷基乙酸制备α-(吡咯烷-1-基)-α,α-二烷基乙酸。这使我们能够首次制备诸如24和25之类的化合物。还没有发现新型的Pd介导的α-(吡咯烷-1-基)乙酸的N-去烷基化反应。