7086-29-5Relevant academic research and scientific papers
Stereospecific Construction of Contiguous Quaternary All-Carbon Centers by Oxidative Ring Contraction
Yu, Xin,Hu, Jiadong,Shen, Zhigao,Zhang, Hui,Gao, Jin-Ming,Xie, Weiqing
, p. 350 - 353 (2016/12/30)
Oxidative ring contraction of cyclic α-formyl ketones was facilitated by the action of H2O2under operationally simple and environmentally benign reaction conditions. The process was highly regioselective and enables stereospecific construction of contiguous quaternary all-carbon centers from stereodefined all-substituted all-cyclic ketones. The asymmetric syntheses of (+)-cuparene and (+)-tochuinyl acetate were also successively achieved by taking advantage of this novel protocol.
New Strategy for Forging Contiguous Quaternary Carbon Centers via H 2 O 2 -Mediated Ring Contraction
Hu, Jiadong,Yu, Xin,Xie, Weiqing
, p. 2517 - 2524 (2017/09/28)
Stereospecific construction of contiguous quaternary carbon centers constitutes a major challenge in natural product synthesis. A general protocol that enables stereospecific construction of all stereoisomers of such a moiety remains elusive. In this article, we will discuss the oxidative ring contraction of all-substituted cyclic α-formyl ketones mediated by H 2 O 2, which provides a facile access to the stereospecific construction of contiguous quaternary carbon centers.
HISTONE DEACETYLASE INHIBITORS AND COMPOSITIONS AND METHODS OF USE THEREOF
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, (2014/10/15)
Provided are certain histone deacetylase (HDAC) inhibitors of Formula I, compositions thereof, and methods of their use.
The design of a novel series of muscarinic receptor antagonists leading to AZD8683, a potential inhaled treatment for COPD
Mete, Antonio,Bowers, Keith,Bull, Richard J.,Coope, Helen,Donald, David K.,Escott, Katherine J.,Ford, Rhonan,Grime, Ken,Mather, Andrew,Ray, Nicholas C.,Russell, Vince
, p. 6248 - 6253 (2013/11/19)
A novel series of muscarinic receptor antagonists was developed, with the aim of identifying a compound with high M3 receptor potency and a reduced risk of dose-limiting side effects with potential for the treatment of COPD. Initial compound mo
QUINUCLIDINE DERIVATIVES AS MUSCARINIC M3 RECEPTOR ANTAGONISTS
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Page/Page column 21, (2011/08/02)
The invention provides named compounds of formula (I), wherein R4 is a N-substituted quinuclidine (I) pharmaceutical compositions containing them and a process for preparing the pharmaceutical compositions. Their use in therapy for’ the treatment of conditions mediated by M3 muscarinic receptors, such as chronic obstructive pulmonary disease is also disclosed.
QUINUCLIDINE DERIVATIVES AS MUSCARINIC M3 RECEPTOR ANTAGONISTS
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, (2009/12/23)
The invention provides named compounds of formula (I ), wherein R4 is a N- sustituted quinuclidine ( I ) pharmaceutical compositions containing them and a process for preparing the pharmaceutical compositions. Their use in therapy for' the treatment of conditions mediated by M3 muscarinic receptors, such as chronic obstructive pulmonary disease is also disclosed.
QUINUCLIDINE DERIVATIVES AND THEIR USE AS MUSCARINIC RECEPTOR ANTAGONISTS FOR THE TREATMENT OF ASTHMA AND CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD)
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, (2009/12/23)
The invention provides compounds of formula (I) wherein R1, R2, R3, R4, R5, Het1, n, Y and X are as defined in the specification, a process for their preparation, pharmaceutical compositions containing them, a process for preparing pharmaceutical compositions, their use in therapy and intermediates of use in their preparation.
NOVEL COMPOUNDS 514
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Page/Page column 42, (2008/12/05)
The invention provides compounds of formula (I), wherein R1, R2, R3, R4, R5, g, h and X are as defined in the specification, a process for their preparation, pharmaceutical compositions containing the
QUINICLIDINE DERIVATIVES OF (HETERO) ARYLCYCLOHEPTANECARBOXYLIC ACID AS MUSCARINIC RECEPTOR ANTAGONISTS
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Page/Page column 44-45, (2008/12/05)
The invention provides compounds of formula (I) wherein R4 is a group of formula (II) or (IIIa) or (IIIb) and R1, R2, R3, R5, a, b and X are as defined in the specification, a process for their preparation, pharmaceutical compositions containing them, a process for preparing pharmaceutical compositions, their use in therapy and intermediates of use in their preparation (I), (II), (IIIa), (IIIb).
