Pd-Catalyzed kinetic resolution of benzylic alcohols: a practical synthesis of (R)-tomoxetine and (S)-fluoxetine hydrochlorides
摘要:
A convenient synthetic route to (R)-tomoxetine hydrochloride (90% ee) and (S)-fluoxetine hydrochloride (84% ee) is described. (S)-3-Phenyl-3-hydroxypropyl p-toluenesulphonate, the key intermediate, is obtained by the oxidative kinetic resolution of the corresponding racemic 3-phenyl-3-hydroxypropyl p-toluenesulphonate using (-)-sparteine/Pd(II)/O-2 (1 atm) catalytic system. (C) 2002 Published by Elsevier Science Ltd.
Compounds of formula (I): compositions comprising them, processes for preparing them and their use in medical therapy (for example modulating CCR5 receptor activity in a warm blooded animal).
Structure-Based Design and Synthesis of 1,3-Oxazinan-2-one Inhibitors of 11β-Hydroxysteroid Dehydrogenase Type 1
作者:Zhenrong Xu、Colin M. Tice、Wei Zhao、Salvacion Cacatian、Yuan-Jie Ye、Suresh B. Singh、Peter Lindblom、Brian M. McKeever、Paula M. Krosky、Barbara A. Kruk、Jennifer Berbaum、Richard K. Harrison、Judith A. Johnson、Yuri Bukhtiyarov、Reshma Panemangalore、Boyd B. Scott、Yi Zhao、Joseph G. Bruno、Jennifer Togias、Joan Guo、Rong Guo、Patrick J. Carroll、Gerard M. McGeehan、Linghang Zhuang、Wei He、David A. Claremon
DOI:10.1021/jm2005354
日期:2011.9.8
Structure based design led directly to 1,3-oxazinan-2-one 9a with an IC50 of 42 nM against 11β-HSD1 in vitro. Optimization of 9a for improved in vitro enzymatic and cellular potency afforded 25f with IC50 values of 0.8 nM for the enzyme and 2.5 nM in adipocytes. In addition, 25f has 94% oral bioavailability in rat and >1000× selectivity over 11β-HSD2. In mice, 25f was distributed to the target tissues
[EN] NOVEL PIPERIDINE/8-AZABICYCLO [3.2.1] OCTAN DERIVATIVES AS MODUILATORS OF CHEMOKINE RECEPTOR CCR5<br/>[FR] NOUVEAUX DERIVES DE PIPERIDINE/8-AZABICYCLO [3.2.1] OCTANE UTILISES COMME MODULATEURS DES RECEPTEURS CCR5 DE LA CHEMOKINE
申请人:ASTRAZENECA AB
公开号:WO2006001752A1
公开(公告)日:2006-01-05
Compounds of formula (I) wherein neither R4 nor R5 is hydrogen; compositions comprising them, processes for preparing them and their use in medical therapy (for example modulating CCR5 receptor activity in a warm blooded animal).
Heteroarylalkyl-8-azabicyclo[3.2.1]octane compounds as mu opioid receptor antagonists
申请人:Long Daniel D.
公开号:US20090062334A1
公开(公告)日:2009-03-05
The invention provides heteroarylene substituted 8-azabicyclo[3.2.1]octane compounds of formula (I):
wherein R
1
, R
2
, A, and m are defined in the specification, or a pharmaceutically-acceptable salt thereof, that are antagonists at the mu opioid receptor. The invention also provides pharmaceutical compositions comprising such compounds, methods of using such compounds to treat conditions associated with mu opioid receptor activity, and processes and intermediates useful for preparing such compounds.
reducing affinity at the hERG cardiac ion channel. Replacement of one aromatic ring in the diphenylpropyl region with less lipophilic, saturated heterocyclic rings and subsequent optimisation of the other phenyl ring led to the identification of clinical compound AZD5672 which retained excellent potency while reducing hERG affinity. Modulating lipophilicity affected the interplay between potency, hERG