The discovery of long-acting saligenin β2 adrenergic receptor agonists incorporating hydantoin or uracil rings
作者:Panayiotis A. Procopiou、Victoria J. Barrett、Nicola J. Bevan、Peter R. Butchers、Richard Conroy、Amanda Emmons、Alison J. Ford、Séverine Jeulin、Brian E. Looker、Gillian E. Lunniss、Valerie S. Morrison、Peter J. Mutch、Rossana Perciaccante、Mark Ruston、Claire E. Smith、Graham Somers
DOI:10.1016/j.bmc.2011.05.064
日期:2011.7
A series of novel, potent and selective human β2 adrenoceptor agonists incorporating a hydantoin or a uracil ring on the right-hand side phenyl ring of (R)-salmeterol is presented. Hydantoin 12a had long duration of action in vitro on guinea pig trachea, and 12 h in guinea pigs in vivo at its EC90 25 μM. It had lower oral absorption than salmeterol in rats, and lower bioavailability than salmeterol
β的一系列新颖的,有效的和选择性的人2结合的右手侧苯环上的乙内酰脲或尿嘧啶环肾上腺素受体激动剂([R)-salmeterol被呈现。乙内酰脲12a在体外对豚鼠气管的作用时间长,在豚鼠体内以EC 90 25μM的作用时间为12 h 。它在大鼠中的口服吸收低于沙美特罗,并且在大鼠和狗中的体内生物利用度均低于沙美特罗(分别为2%和5%)。提出了一种改进的测量给予大鼠的类似物的吸收分数的方法,该方法考虑了葡糖醛酸化的分数。化合物12a在人肝微粒体和肝细胞中代谢为活性乙醛酸12m。