Novel (4-Phenylpiperidinyl)- and (4-Phenylpiperazinyl)alkyl-Spaced Esters of 1-Phenylcyclopentanecarboxylic Acids as Potent .sigma.-Selective Compounds
摘要:
A series of novel 4-phenylpiperidinyl and (4-phenylpiperazinyl) alkyl 1-phenylcyclopentanecarboxylates was synthesized and evaluated for affinity at sigma(1) and sigma(2) sites by inhibition of [H-3]-(+)-pentazocine (PENT) and [H-3]-1,3-di(2-tolyl)guanidine (DTG) binding in guinea pig brain. The phenylpiperidines were more potent sigma ligands than the corresponding piperazines. Structural modifications varying the optimal spatial distance between the piperidine nitrogen and ester functions led to the identification of the propyl compound 24 ([H-3]PENT K-i = 0.50 nM; [H-3]DTG K-i = 1.17 nM) and the butyl derivative 32 ([H-3]PENT K-i = 0.51 nM; [H-3]DTG K-i = 0.69 nM) as novel high-affinity sigma-selective agents. An ethylene spacer was optimum with para-substituted analogs. A notable finding was the discovery of 2-(4-phenylpiperidinyl) ethyl 1-(4-nitrophenyl)cyclopentanecarboxylate hydrochloride (15) (RLH-033), which demonstrated potent affinity for the [H-3]PENT-defined sigma site with a K-i of 50 pM, selectivity for sigma(1) over muscarinic M(1) (> 17600-fold), M(2) (> 34200-fold), dopamine D-1 (> 58000-fold), and D-2 (> 7000-fold) receptors, and inactivity at phencyclidine, NMDA, and opioid receptors. RLH-033 is a valuable tool which will aid further in understanding the biology of the sigma recognition site. Information from this research has further defined the topography of the sigma recognition site, which may provide an explanation for the diverse structures which bind with relatively high affinity.
[EN] OXIME DERIVATIVES USEFUL AS INHIBITORS OF HISTONE DEMETHYLASE KDM4C<br/>[FR] DÉRIVÉS D'OXIME UTILES EN TANT QU'INHIBITEURS DE L'HISTONE DÉMÉTHYLASE KDM4C
申请人:IEO - ST EUROPEO DI ONCOLOGIA S R L
公开号:WO2017198785A1
公开(公告)日:2017-11-23
The present invention relates to oxime derivatives (Formula I), wherein R1 and R2 are as defined in the specification, pharmaceutical compositions containing such compounds and to their use in therapy.
The present invention is concerned with new dibenzylglycolic acid derivatives and with the preparation thereof. These derivatives show an extraordinary anti-hypertensive and antisecretory profile.
本发明涉及新的二苯甘酸衍生物及其制备方法。这些衍生物表现出非凡的抗高血压和抗分泌作用。
Substituted piperazinyl alkyl esters of
申请人:Takeda Chemical Industries, Ltd.
公开号:US04603135A1
公开(公告)日:1986-07-29
Dihydropyridine derivatives and acid addition salts thereof which are of use as prophylactic or/and therapeutic drugs for cardiovascular diseases, said dihydropyridine derivatives having the formula ##STR1## wherein R.sup.1 is a hydrogen atom or an aryl, R.sup.2 and R.sup.3 are the same or different and each is an aryl, R.sup.4 and R.sup.6 are the same or different and each is a lower alkyl, R.sup.5 is amino or a lower alkyl, A is an alkylene, X is N or CH and m and n are the same or different and each is 0 or 1, with the proviso that when X is N, R.sup.5 is amino.
Dihydropyridine derivatives, their production and use
申请人:Takeda Chemical Industries, Ltd.
公开号:EP0138505A2
公开(公告)日:1985-04-24
Dihydropyridine derivatives and acid addition salts thereof which are of use as prophylactic or/and therapeutic drugs for cardiovascular diseases, said dihydropyridine derivatives having the formula
wherein
R1 is a hydrogen atom or an aryl,
R2 and R3 are the same or different and each is an aryl,
R4 and R6 are the same of different and each is a lower alkyl,
R5 is amino or a lower alkyl,
A is an alkylene,
X is N or CH and
m and n are the same or different
and each is 0 or 1,
with the proviso that when X is N, R5 is amino.
可用作心血管疾病预防或/和治疗药物的二氢吡啶衍生物及其酸加成盐,所述二氢吡啶衍生物具有以下式子
式中
R1 是氢原子或芳基、
R2 和 R3 相同或不同,且各自为芳基、
R4 和 R6 相同或不同,各自为低级烷基、
R5 是氨基或低级烷基、
A 是亚烷基、
X 是 N 或 CH,以及
m 和 n 相同或不同
且各自为 0 或 1、
但当 X 为 N 时,R5 为氨基。
1,4-dihydropyridine derivatives
申请人:FUJIREBIO INC.
公开号:EP0400660A1
公开(公告)日:1990-12-05
1,4-Dihydropyridine derivatives of formula (I):
wherein Ar1 and Ar2 each represent an unsubstituted or substituted aromatic hydrocarbon or aromatic heterocyclic group; and R1 represents -C02R2, -SO2R3, -COR4, -CON(R5)2, -CN or -NO2 in which R2 is hydrogen, a straight chain, branched chain or cyclic saturated hydrocarbon group, which may have a substituent or a straight chain, branched chain or cyclic unsaturated hydrocarbon group having 2 to 10 carbon atoms, which may have a substituent, R3 is an alkyl group having 1 to 4 carbon atoms, R4 is an alkyl group having 1 to 4 carbon atoms or a phenyl group; and R5 is an alkyl group having 1 to 4 carbon atoms.