为了设计一种潜在的药物,重要的是要知道它的p K a,因为分子的质子化状态对于配体-受体相互作用和分子的药代动力学至关重要。测量一系列1-(取代的苯基)-4-丙基哌嗪的p K a值,以研究苯环上取代基的存在如何调节N-4氮的碱性。p K a值表明取代基的位置至关重要。通常,在邻位引入取代基苯环的-位增加了分子的碱性。该作用似乎与空间和构象作用有关,与取代基的电子性质无关。另一方面,间位和对位取代的衍生物显示出p K a的轻微降低,其在质量上与取代基的电子性质一致。
Provided herein are agents that bind to soluble beta-amyloid. Also provided are in vivo and in vitro methods for detecting soluble beta-amyloid in a sample that may include brain tissue.
AGENTS FOR IMAGING SOLUBLE A-BETA
申请人:Siclovan Mircea Tiberiu
公开号:US20070189967A1
公开(公告)日:2007-08-16
Provided herein are agents that bind to soluble beta-amyloid. Also provided are in vivo and in vitro methods for detecting soluble beta-amyloid in a sample that may include brain tissue.