[EN] MACROCYCLIC OREXIN RECEPTOR AGONISTS AND USES THEREOF [FR] AGONISTES DU RÉCEPTEUR DE L'OREXINE MACROCYCLIQUE ET LEURS UTILISATIONS
摘要:
Provided herein are compounds of Formula (I), (I), or pharmaceutically acceptable salt thereof, wherein m, n, p, A1, A2, A3, A4, L, R1, R2, R3, R4, Formula (II), (II), V, X, Y and Z are defined herein. Also provided herein are pharmaceutical compositions comprising a compound of Formula (I) or pharmaceutically acceptable salt thereof, and methods of using a compound of Formula (I) or pharmaceutically acceptable salt thereof, e.g., in the treatment of a disease or disorder that is treatable by administration of an Orexin agonist.
Synthesis of [18F]-γ-Fluoro-α,β-unsaturated Esters and Ketones via Vinylogous 18F-Fluorination of α-Diazoacetates with [18F]AgF
作者:Stephen Thompson、So Jeong Lee、Isaac M. Jackson、Naoko Ichiishi、Allen F. Brooks、Melanie S. Sanford、Peter J. H. Scott
DOI:10.1055/s-0039-1690012
日期:2019.12
a fluorinated cholest-5-en-3-one derivative as well as a difluorinated product pertinent to drug discovery. This communication reports a method for the vinylogous radiofluorination of α-diazoacetates to generate [18F]-γ-fluoro-α,β-unsaturated esters and ketones in moderate to good radiochemical yields. The method uses no-carrier-added [18F]AgF and is compatible with aromatic and non-aromatic substrates
Efficient Pd-Catalyzed Regio- and Stereoselective Carboxylation of Allylic Alcohols with Formic Acid
作者:Ming-Chen Fu、Rui Shang、Wan-Min Cheng、Yao Fu
DOI:10.1002/chem.201701971
日期:2017.7.3
Formic acid is efficiently used as a C1 source to directly carboxylate allylicalcohols in the presence of a low loading of palladium catalyst and acetic anhydride as additive to afford β,γ‐unsaturated carboxylic acids with excellent chemo‐, regio‐, and stereoselectivity. The reaction proceeds through a carbonylation process with in situ‐generated carbon monoxide under mild conditions, avoiding the
Alkene Dioxygenation with Malonoyl Peroxides: Synthesis of γ-Lactones, Isobenzofuranones, and Tetrahydrofurans
作者:Carla Alamillo-Ferrer、Marianna Karabourniotis-Sotti、Alan R. Kennedy、Matthew Campbell、Nicholas C. O. Tomkinson
DOI:10.1021/acs.orglett.6b01253
日期:2016.7.1
homoallylic alcohols or carboxylic acids with malonoyl peroxide 1 provides a stereoselective method for the preparation of tetrahydrofurans, γ-lactones, and isobenzofuranones in 44–82% yield and up to 27:1 trans selectivity. Application of this simple and effective heterocyclization in the synthesis of the antidepressant citalopram is also described.
Direct Enantioselective and Regioselective Alkylation of β,γ-Unsaturated Carboxylic Acids with Chiral Lithium Amides as Traceless Auxiliaries
作者:Kai Yu、Bukeyan Miao、Wenqi Wang、Armen Zakarian
DOI:10.1021/acs.orglett.9b00587
日期:2019.3.15
Efficient asymmetric alkylation of β,γ-unsaturated carboxylicacids without prior functionalization is enabled by chiral lithium amides. Enantioselectivity is imparted by a putative mixed lithium amide–enediolate aggregate that acts a traceless auxiliary formed in situ, allowing for a direct asymmetric alkylation and a simple recovery of the chiral reagent.
Catalytic asymmetric aminolactonization of 1,2-disubstituted alkenoic acid esters: Efficient construction of aminolactones with an all-carbon quaternary stereo-centre
作者:Saumen Hajra、Sk Md Samim Akhtar、Sk Mohammad Aziz
DOI:10.1039/c4cc01944j
日期:——
Chiral BOX-Cu(OTf)2 catalyzed enantioselective aminolactonization of the tert-butyl ester of alkenoicacids has been developed via in situ aziridination using PhINNs as the nitrene source. It provides exclusively trans-gamma- and delta-amino lactones including an additional all-carbon quaternary stereo-centre with up to 98% ee in good to excellent yields.