Novel Potent Antagonists of Transient Receptor Potential Channel, Vanilloid Subfamily Member 1: Structure−Activity Relationship of 1,3-Diarylalkyl Thioureas Possessing New Vanilloid Equivalents
摘要:
Recently, 1,3-diarylalkyl thioureas have merged as one of the promising nonvanilloid TRPV1 antagonists possessing excellent therapeutic potential in pain regulation. In this paper, the full structure-activity relationship for TRPV1 antagonism of a novel series of 1,3-diarylalky thioureas is reported. Exploration of the structure- activity relationship, by systemically modulating three essential pharmacophoric regions, led to six examples of 1,3-dibenzyl thioureas, which exhibit Ca2+ uptake inhibition in rat DRG neuron with IC50 between 10 and 100 nM.
Structure-Activity Relationships of N6-Benzyladenosine-5'-uronamides as A3-Selective Adenosine Agonists
摘要:
Adenosine analogues modified at the 5'-position as uronamides and/or as N-6-benzyl derivatives were synthesized. These derivatives were examined for affinity in radioligand binding assays at the newly discovered rat brain A(3) adenosine receptor and at rat brain A(1) and Az, receptors. 5'Uronamide substituents favored AS selectivity in the order N-methyl > N-ethyl approximate to unsubstituted carboxamide > N-cyclopropyl. 5'-(N-Methylcarboxamido)-N-6-benzyladenosine was 37-56-fold more selective for Ag receptors. Potency at A(3) receptors was enhanced upon substitution of the benzyl substituent with nitro and other groups. 5'-N-Methyluronamides and N-6-(3-substituted-benzyl) adenosines are optimal for potency and selectivity at A(3) receptors. A series of 3-(halobenzyl)5'-N-ethyluronamide derivatives showed the order of potency at A(1) and A(2)a receptors of I similar to Br > Cl > F. At A(3) receptors the 3-F derivative was weaker than the other halo derivatives. 5'-N-Methyl-N-6- (3-iodobenzyl) adenosine displayed a K-i value of 1.1 nM at A(3) receptors and selectivity versus A(1) and A(2a), receptors of 50-fold. A series of methoxybenzyl derivatives showed that a C-methoxy group best favored A(3) selectivity. A 4-sulfobenzyl derivative was a specific ligand at A(3) receptors of moderate potency. An aryl amino derivative was prepared as a probe for radioiodination and receptor cross-linking.
[EN] LIGANDS FOR ENHANCED IMAGING AND DRUG DELIVERY TO NEUROBLASTOMA CELLS<br/>[FR] LIGANDS POUR IMAGERIE AMÉLIORÉE ET ADMINISTRATION DE MÉDICAMENT À DES CELLULES DE NEUROBLASTOME
申请人:UNIV MADRID COMPLUTENSE
公开号:WO2019185586A1
公开(公告)日:2019-10-03
The present invention concerns aminobenzylguanidine derivative ligands specifically targeting neuroblastoma cells with an improved cellular uptake. The improved cellular uptake provides for the therapeutic and diagnostic use of the ligands in neuroblastoma-related diseases.
[EN] COLLAGEN 1 TRANSLATION INHIBITORS AND METHODS OF USE THEREOF<br/>[FR] INHIBITEURS DE TRADUCTION DE COLLAGÈNE 1 ET LEURS PROCÉDÉS D'UTILISATION
申请人:ANIMA BIOTECH INC
公开号:WO2021154902A1
公开(公告)日:2021-08-05
The present invention relates to novel Collagen 1 translation inhibitors, composition and methods of preparation thereof, and uses thereof for treating Fibrosis including lung, liver, kidney, cardiac and dermal fibrosis, IPF, wound healing, scarring and Gingival fibromatosis, Systemic Sclerosis, and alcoholic and non-alcoholic steatohepatitis (NASH).
Molecular Scaffolds as Double‐Targeting Agents For the Diagnosis and Treatment of Neuroblastoma
作者:Gonzalo Villaverde、Arantzazu Alfranca、África Gonzalez‐Murillo、Gustavo J. Melen、Rafael R. Castillo、Manuel Ramírez、Alejandro Baeza、María Vallet‐Regí
DOI:10.1002/anie.201811691
日期:2019.3.4
therapeutic and imaging agents to tumoral cells has been postulated as one of the most important challenges in the nanomedicine field. Meta-iodobenzilguanidine (MIBG) is widely used for the diagnosis of neuroblastoma (NB) due to its strong affinity for the norepinephrine transporter (NET), usually overexpressed on the membrane of malignant cells. Herein, a family of novel Y-shaped scaffolds has been synthesized
向肿瘤细胞选择性递送治疗剂和显像剂被认为是纳米医学领域最重要的挑战之一。间碘苯甲胍 (MIBG) 广泛用于诊断神经母细胞瘤 (NB),因为它与去甲肾上腺素转运蛋白 (NET) 具有很强的亲和力,而去甲肾上腺素转运蛋白 (NET) 通常在恶性细胞膜上过度表达。在此,合成了一系列新型 Y 形支架,其在 Y 形结构的两端共价连接有 MIBG 的结构类似物。这些双靶向配体的细胞摄取能力已在体外和体内进行了评估,产生了一种特定的 Y 形结构,能够被恶性细胞吞噬,并在肿瘤组织中积累,其水平明显高于肿瘤组织。结构仅包含一种靶向剂。这种Y形配体可以为目前该疾病的治疗和诊断提供有力的工具。
INDOLECARBOXAMIDES AND BENZIMIDAZOLECARBOXAMIDES AS INSECTICIDES AND ACARICIDES
申请人:Heil Markus
公开号:US20140088167A1
公开(公告)日:2014-03-27
The present invention relates to compounds of the general formula (I)
in which R
1
to R
6
, A, Y, X, G, n and m are each as defined in the description—and to a process for preparation thereof and to the use thereof as insecticides and acaricides.
I-4-amino-3-iodobenzylguanidine as imaging and therapeutic agent
申请人:The Regents of the University of Michigan
公开号:US04622217A1
公开(公告)日:1986-11-11
A novel compound, 4-amino-3-iodobenzylguanidine, in radioiodinated form is useful in radiopharmaceutical compositions in nuclear medicine as an imaging agent for the heart, adrenal medulla, and tumors of the adrenal medulla and can be used for treatment of tumors of the adrenal medulla. The radioactive compound can be readily made by reacting 4-aminobenzylguanidine and an N-chloro oxidant in the presence of a radioiodide.