[EN] SUBSTITUTED PIPERIDINE COMPOUND AND USE THEREOF<br/>[FR] COMPOSÉ DE PIPÉRIDINE SUBSTITUÉE ET SON UTILISATION
申请人:TAKEDA PHARMACEUTICALS CO
公开号:WO2017135306A1
公开(公告)日:2017-08-10
Provided is a substituted piperidine compound having an orexin type 2 receptor agonist activity. A compound represented by the formula (I): wherein each symbol is as described in the DESCRIPTION, or a salt thereof has an orexin type 2 receptor agonist activity, and is useful as a prophylactic or therapeutic agent for narcolepsy.
efficient catalytic asymmetric hydrogenation of racemic α‐arylcyclohexanones with an ethylene ketal group at the 5‐position of the cyclohexane ring via dynamic kinetic resolution has been developed, giving chiral α‐arylcyclohexanols with two contiguous stereocenters with up to 99% ee and >99:1 cis/trans‐selectivity. Using this highly efficient asymmetric hydrogenation reaction as a key step, (−)‐α‐lycorane
Optimization of TRPV6 Calcium Channel Inhibitors Using a 3D Ligand‐Based Virtual Screening Method
作者:Céline Simonin、Mahendra Awale、Michael Brand、Ruud van Deursen、Julian Schwartz、Michael Fine、Gergely Kovacs、Pascal Häfliger、Gergely Gyimesi、Abilashan Sithampari、Roch‐Philippe Charles、Matthias A. Hediger、Jean‐Louis Reymond
DOI:10.1002/anie.201507320
日期:2015.12
the first potent and selective inhibitor of TRPV6, a calciumchannel overexpressed in breast and prostate cancer, and its use to test the effect of blocking TRPV6‐mediated Ca2+‐influx on cell growth. The inhibitor was discovered through a computational method, xLOS, a 3D‐shape and pharmacophore similarity algorithm, a type of ligand‐basedvirtualscreening (LBVS) method described briefly here. Starting
Cobalt-Catalyzed Desymmetric Isomerization of Exocyclic Olefins
作者:Xufang Liu、Xianle Rong、Shihan Liu、Yu Lan、Qiang Liu
DOI:10.1021/jacs.1c11343
日期:2021.12.15
Chiral cyclic olefins, 1-methylcyclohexenes, are versatile building blocks for the synthesis of pharmaceuticals and natural products. Despite the prevalence of these structural motifs, the development of efficient synthetic methods remains an unmet challenge. Herein we report a novel desymmetric isomerization of exocyclicolefins using a series of newly designed chiral cobalt catalysts, which enables
concise and efficient total synthesis of honokiol, a biphenyl-type neolignan is accomplished in six steps using readily available and cost-effective reagents. The synthetic route involves mainly the Grignard reaction, iodine mediated aromatization, and Claisenrearrangement as key steps. A predominant formation of honokiol (1a) was observed in the Claisenrearrangement under microwave irradiation whereas