Neuroleptic activity and dopamine-uptake inhibition in 1-piperazino-3-phenylindans
摘要:
A series of 1-piperazino-3-phenylindans was synthesized and tested for neuroleptic and thymoleptic activity. Neuroleptic activity was found only in trans racemates and was associated with one of the enantiomers only. The potent and long-acting neuroleptic compound trans-4-[3-(4-fluorophenyl)-6-(trifluoromethyl)indan-1-yl]-1-piperazineethanol (Lu 18-012, tefludazine) was developed by systematic variation of structural components. Thymoleptic activity was optimized, especially with respect to dopamine-uptake inhibition. No geometrical stereoselectivity was found with regard to dopamine-uptake inhibition, but a high enantioselectivity could be demonstrated for both cis and trans racemates. The most potent compounds were 1-piperazino-3-(3,4-dichlorophenyl)indans with IC50 values of about 2nM for inhibition of dopamine uptake.
Efficient kinetic resolution in the asymmetric transfer hydrogenation of 3-aryl-indanones: applications to a short synthesis of (+)-indatraline and a formal synthesis of (<i>R</i>)-tolterodine
作者:Songsoon Park、Hyeon-Kyu Lee
DOI:10.1039/d1ra04538e
日期:——
Efficient kinetic resolution (KR) occurs in asymmetric transfer hydrogenation (ATH) reactions of racemic 3-aryl-1-indanones using commercial (R,R)- or (S,S)-Ts-DENEB as a catalyst, a 1 : 5 mixture of HCO2H and Et3N as a hydrogen source and MeOH as solvent. This process at room temperature produces near equal yields of cis-3-arylindanols with high dr and ee, and unreacted 3-arylindanones with excellent
高效动力学拆分 (KR) 发生在外消旋 3-aryl-1-indanones 的不对称转移氢化 (ATH) 反应中,使用商业 ( R , R )-或 ( S , S )-Ts-DENEB 作为催化剂,a 1:5 HCO 2 H和Et 3 N的混合物作为氢源和MeOH作为溶剂。这个过程在室温下产生几乎相等的顺式-3-芳基二氢萘并具有高 dr 和 ee 的产率,以及具有优异 ee 的未反应的 3-芳基二氢萘酮。使用 ATH-KR 方案生成的 3-芳基茚满醇和 3-芳基茚满酮的立体选择性转化形成 (+)-吲达曲林并具有合成价值 ( R)-6-甲基-4-苯基香豆素,是制备( R )-托特罗定、( S )-4-aryl-3,4-dihydroquinoline-2( 1H )-one和( S )的关键中间体-4-aryl-3,4-dihydroisoquinoline-1(2 H )-one。