Agents for the Treatment of Overactive Detrusor. V. Synthesis and Inhibitory Activity on Detrusor Contraction of N-tert-Butyl-4,4-diphenyl-2-cyclopentenylamine.
作者:Kazuhiko TAKE、Kazuo OKUMURA、Kazunori TSUBAKI、Kiyoshi TANIGUCHI、Takao TERAI、Youichi SHIOKAWA
DOI:10.1248/cpb.44.1858
日期:——
N-tert-Butyl-4, 4-diphenyl-2-cyclopentenylamine ((±)-3) was designed to restrict the conformation of terodiline 1 and was synthesized in a 6-step approach starting with diphenylacetaldehyde (10) or in a 4-step approach starting with 2, 2-diphenyl-4-pentenoic acid (17). Using di-p-toluoyltartaric acid as a resolving agent, the synthetic (±)-3 was resolved into its optically pure forms, (-)- and (+)-3. The (-)-enantiomer (-)-3·HCl (FK584) showed about ten times more potent inhibitory acitivity on urinary bladder rhythmic contraction in rats (ED30 =0.18 mg/kg, i.v.)than terodiline (ED30=1.9 mg/kg, i.v), while the (+)-enantiomer (+)-3·HCl showed no inhibitory activity at 1.0 mg/kg i.v.Compound (-)-3·HCl (FK584) has pharmacological properties similar to those of terodiline, as evaluated by in vitro assay and is currently in clinical development for the treatment of overactive detrusor.
设计 N-叔丁基-4,4-二苯基-2-环戊烯胺((±)-3)的目的是限制特罗地林 1 的构象,合成方法是以二苯基乙醛 (10) 为起点,分 6 个步骤合成,或以 2,2-二苯基-4-戊烯酸 (17) 为起点,分 4 个步骤合成。使用二对甲苯甲酰基酒石酸作为分辨剂,合成的 (±)-3 被分辨成光学纯形式的 (-)- 和 (+)-3 。(-)-对映体(-)-3-HCl(FK584)对大鼠膀胱节律性收缩的抑制活性(ED30 =0.18 mg/kg,静注)是特罗地林(ED30=1.9 mg/kg,静注)的十倍,而(+)-对映体(+)-3-HCl在 1.通过体外检测评估,(-)-3-HCl 化合物(FK584)具有与特罗地林相似的药理特性,目前正处于治疗过度活动性逼尿肌的临床开发阶段。