Stereoselective Access to Alkylidenecyclobutanes through γ-Selective Cross-Coupling Strategies
作者:Michael Eisold、Dorian Didier
DOI:10.1021/acs.orglett.7b01803
日期:2017.8.4
Alkylidenecyclobutanes (ACBs) containing all-carbon quaternary stereocenters were simply and efficiently synthesized by combining boron-homologation and γ-selective cross-coupling strategies. This unique sequence led to excellent regio- and diastereoselectivities in the generation of targeted four-membered rings with up to 99% enantiomeric excess using chiral substrates. In addition to the original
Bridged tetrahydroisoquinolines as selective NADPH oxidase 2 (Nox2) inhibitors
作者:Eugenia Cifuentes-Pagano、Jaideep Saha、Gábor Csányi、Imad Al Ghouleh、Sanghamitra Sahoo、Andrés Rodríguez、Peter Wipf、Patrick J. Pagano、Erin M. Skoda
DOI:10.1039/c3md00061c
日期:——
(1SR,4RS)-3,3-Dimethyl-1,2,3,4-tetrahydro-1,4-(epiminomethano)naphthalenes were synthesized in 2–3 steps from commercially available materials and assessed for specificity and effectiveness across a range of Nox isoforms. The N-pentyl and N-methylenethiophene substituted analogs 11g and 11h emerged as selective Nox2 inhibitors with cellular IC50 values of 20 and 32 μM, respectively.
[EN] TETRAHYDROISOQUINOLINES AS SELECTIVE NADPH OXIDASE 2 INHIBITORS<br/>[FR] TÉTRAHYDROISOQUINOLINES UTILES COMME INHIBITEURS SÉLECTIFS DE NADPH OXIDASE 2
申请人:UNIV PITTSBURGH
公开号:WO2014179592A1
公开(公告)日:2014-11-06
Embodiments of bridged tetrahydroisoquinolines and methods for their use in selectively inhibiting nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 2 are disclosed. The disclosed compounds have a structure according to general formula I or a pharmaceutically acceptable salt thereof: wherein "−−−−−−−" represents a single or double bond, R1 is hydrogen, halogen, lower aliphatic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; Ra is hydrogen, -CH2R2, R 3, or -SO2R 4; R 2 is lower aliphatic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R3 is substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R4 is lower aliphatic, or substituted or unsubstituted aryl; and R5 is hydrogen, halogen, or lower aliphatic.
Addition conjuguée d'organométalliques sur des mésitylcétones α-éthyléniques
作者:F. Barbot、D. N'Goma、Ph. Miginiac
DOI:10.1016/0022-328x(91)83001-k
日期:1991.6
of α-ethylenic mesitylketones with a series of organometallic compounds including allylic organometallics and organolithium compounds proceed via exclusive conjugatedadditions as a result of the steric congestion of the carbonyl of these ketones.
Efficient and General Aerobic Oxidative Cross-Coupling of THIQs with Organozinc Reagents Catalyzed by CuCl<sub>2</sub>: Proof of a Radical Intermediate
general new method for the highly concise synthesis of C-1-alkylated tetrahydroisoquinolines (THIQ) is reported. The CuCl2-catalyzed procedure is based on a coupling of nonfunctionalized THIQs with organozincreagents under aerobic conditions. It proceeds in high yields and is broadly applicable to a wide range of substrates. It relies on a regioselective sp3 C–H bond activation allowing for an sp3–sp3