Compounds of formula (I)
Z-Ar
1
—Ar
2
(I)
wherein Z is a diazabicyclic amine, Ar
1
is a 5- or 6-membered aromatic ring, and Ar
2
is selected from the group consisting of an unsubstituted or substituted 5- or 6-membered heteroaryl ring; unsubstituted or substituted bicyclic heteroaryl ring; 3,4-(methylenedioxy)phenyl; carbazolyl; tetrahydrocarbazolyl; naphthyl; and phenyl; wherein the phenyl is substituted with 0, 1, 2, or 3 substituents in the meta- or para-positions. The compounds are useful in treating conditions or disorders prevented by or ameliorated by α7 nAChR ligands. Also disclosed are pharmaceutical compositions comprising compounds of formula (I) and methods for using such compounds and compositions.
Design, Synthesis, and Biological Activities of Potent and Selective Somatostatin Analogues Incorporating Novel Peptoid Residues
作者:Thuy-Anh Tran、Ralph-Heiko Mattern、Michel Afargan、Oved Amitay、Ofer Ziv、Barry A. Morgan、John E. Taylor、Daniel Hoyer、Murray Goodman
DOI:10.1021/jm970393l
日期:1998.7.1
We report the synthesis, bioactivity, and structure-activity relationship studies of compounds related to the Merck cyclic hexapeptide c[Pro6-Phe7-d-Trp8-Lys9-Thr10-Phe11], L-363,301 (the numbering in the sequence refers to the position of the residues in native somatostatin). The Pro residue in this compound is replaced with arylalkyl peptoid residues. We present a novel approach utilizing beta-methyl
Structure–Activity Relationship Study of Selective Excitatory Amino Acid Transporter Subtype 1 (EAAT1) Inhibitor 2-Amino-4-(4-methoxyphenyl)-7-(naphthalen-1-yl)-5-oxo-5,6,7,8-tetrahydro-4<i>H</i>-chromene-3-carbonitrile (UCPH-101) and Absolute Configurational Assignment Using Infrared and Vibrational Circular Dichroism Spectroscopy in Combination with ab Initio Hartree–Fock Calculations
作者:Tri H. V. Huynh、Irene Shim、Henrik Bohr、Bjarke Abrahamsen、Birgitte Nielsen、Anders A. Jensen、Lennart Bunch
DOI:10.1021/jm300345z
日期:2012.6.14
The excitatoryaminoacidtransporters (EAATs) play essential roles in regulating the synaptic concentration of the neurotransmitter glutamate in the mammalian central nervous system. To date, five subtypes have been identified, named EAAT1–5 in humans, and GLAST, GLT-1, EAAC1, EAAT4, and EAAT5 in rodents, respectively. In this paper, we present the design, synthesis, and pharmacological evaluation
Synthesis of α-Methylene-β-Lactams via PPh<sub>3</sub>-Catalyzed Umpolung Cyclization of Propiolamides
作者:Lin Zhu、Yan Xiong、Chaozhong Li
DOI:10.1021/jo502265a
日期:2015.1.2
We report herein a facile synthesis of α-methylene-β-lactams. Thus, under the catalysis of triphenylphosphine, a number of 2-propiolamidoacetates or α-propiolamido ketones in refluxing ethanol underwent umpolung cyclization to afford the corresponding 4-substituted 3-methyleneazetidin-2-ones in high yields.
Evaluating the Viability of Successive Ring‐Expansions Based on Amino Acid and Hydroxyacid Side‐Chain Insertion
作者:Aggie Lawer、Ryan G. Epton、Thomas C. Stephens、Kleopas Y. Palate、Mahendar Lodi、Emilie Marotte、Katie J. Lamb、Jade K. Sangha、Jason M. Lynam、William P. Unsworth
DOI:10.1002/chem.202002164
日期:2020.10
size. This manuscript, which builds upon our previous work on Successive Ring Expansion (SuRE) methods, details efforts to better define the scope and limitations of these reactions on lactam and β‐ketoester ring systems with respect to ring size and additional functionality. The synthetic results provide clear guidelines as to which substrate classes are more likely to be successful and are supported