Bicyclic α-Iminophosphonates as High Affinity Imidazoline I<sub>2</sub> Receptor Ligands for Alzheimer’s Disease
作者:Sònia Abás、Sergio Rodríguez-Arévalo、Andrea Bagán、Christian Griñán-Ferré、Foteini Vasilopoulou、Iria Brocos-Mosquera、Carolina Muguruza、Belén Pérez、Elies Molins、F. Javier Luque、Pilar Pérez-Lozano、Steven de Jonghe、Dirk Daelemans、Lieve Naesens、José Brea、M. Isabel Loza、Elena Hernández-Hernández、Jesús A. García-Sevilla、M. Julia García-Fuster、Milica Radan、Teodora Djikic、Katarina Nikolic、Mercè Pallàs、Luis F. Callado、Carmen Escolano
DOI:10.1021/acs.jmedchem.9b02080
日期:2020.4.9
Imidazoline I2 receptors (I2-IR), widely distributed in the CNS and altered in patients that suffer from neurodegenerative disorders, are orphans from a structural point of view, and new I2-IR ligands are urgently required for improving their pharmacological characterization. We report the synthesis and three-dimensional quantitative structure–activity relationship (3D-QSAR) studies of a new family
<SUP2/>? <SUB2/>?2?SYNTHETIC IIMIDAZOLINE RECEPTOR LIGANDS FOR PREVENTION OR TREATMENT OF HUMAN BRAIN DISORDERS
申请人:Universitat de Barcelona
公开号:EP3897838A1
公开(公告)日:2021-10-27
Synthesis and Anti-HIV-1 Activity Evaluation for Novel 3a,6a-Dihydro-1H-pyrrolo[3,4-c]pyrazole-4,6-dione Derivatives
作者:Guan-Nan Liu、Rong-Hua Luo、Yu Zhou、Xing-Jie Zhang、Jian Li、Liu-Meng Yang、Yong-Tang Zheng、Hong Liu
DOI:10.3390/molecules21091198
日期:——
recently disclosed 1-[2-(4-fluorophenyl)ethyl]-pyrrole-2,5-dione scaffolds to design 35 novel compounds with improved biological activities against HIV-1. These new compounds show single-digit micromolar antiviral potencies against HIV-1 and low toxicity. Among of them, compound 9g and 15i had potent anti-HIV-1activities (EC50 < 5 μM) and excellent therapeutic index (TI, CC50/EC50 > 100). These two compounds
Diels-Alder reaction of thebaine with maleimides is structurally specific and yields [7,8,3′,4′ ]-succinimido-endo-ethenotetrahydrothebaines containing N′-alkyl, cycloalkyl, aralkyl or aryl substituents. N′-[1(S)-hydroxymethyl-2-methylpropyl]-succinimido-6,14-endo-ethenotetrahydrothebaine formed in reaction of S-valinol with (7α,8α)-anhydrido-6,14-endo-ethenotetrahydrothebaine. The reduction of the adducts by LiAlH4 afforded N′-substituted 7,8-pyrrolidino-endo-ethenotetrahydrothebaines. The reduction of fused succinimides by NaBH4 resulted in the corresponding 2′α-hydroxylactam derivatives. O-Demethylation of the tetrahydrothebaine pyrrolidine derivatives effected by BBr3 afforded compounds of the tetrahydrooripavine series. The O-demethylation of tetrahydrothebaine succinimide derivatives gave rise to the corresponding 6-demethyl-endo-ethenotetrahydrooripavines. Alkylation conditions were found for N′-(4-hydroxyphenethyl)-substituted tetrahydrothebaine succinimide derivatives.