- Diverse ortho-C(sp2)-H functionalization of benzaldehydes using transient directing groups
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Pd-catalyzed C-H functionalizations promoted by transient directing groups remain largely limited to C-H arylation only. Herein, we report a diverse set of ortho-C(sp2)-H functionalizations of benzaldehyde substrates using the transient directing group strategy. Without installing any auxiliary directing group, Pd(II)-catalyzed C-H arylation, chlorination, bromination, and Ir(III)-catalyzed amidation, could be achieved on benzaldehyde substrates. The transient directing groups formed in situ via imine linkage can override other coordinating functional groups capable of directing C-H activation or catalyst poisoning, significantly expanding the scope for metal-catalyzed C-H functionalization of benzaldehydes. The utility of this approach is demonstrated through multiple applications, including late-stage diversification of a drug analogue.
- Liu, Xi-Hai,Park, Hojoon,Hu, Jun-Hao,Hu, Yan,Zhang, Qun-Liang,Wang, Bao-Long,Sun, Bing,Yeung, Kap-Sun,Zhang, Fang-Lin,Yu, Jin-Quan
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- Click reaction as a tool to combine pharmacophores: The case of Vismodegib
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Abstract The design and the preparation of a small library of 1,4-diphenyl-1,2,3-triazole derivatives is reported, with the aim to obtain a new class of Hedgehog pathway inhibitors. The smoothened protein is part of the hedgehog signaling pathway that is
- Christodoulou, Michael S.,Mori, Mattia,Pantano, Rebecca,Alfonsi, Romina,Infante, Paola,Botta, Maurizio,Damia, Giovanna,Ricci, Francesca,Sotiropoulou, Panagiota A.,Liekens, Sandra,Botta, Bruno,Passarella, Daniele
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- ANTIPROLIFERATION COMPOUNDS AND USES THEREOF
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The present invention provides compounds of Formula I′, or pharmaceutically acceptable salts thereof, pharmaceutical compositions thereof, and methods of use thereof for treating cellular proliferative disorders (e.g., cancer).
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- Synthesis method of vismodegib
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The invention discloses a synthesis method of vismodegib. The method comprises the following reactions: firstly, enabling 2-chloro-5-nitrophenyl boronic acid and 2-bromopyridine to make a coupled reaction to generate an intermediate 2-(2-chloro-5-nitro) phenylpyridine; reducing nitro in the 2-(2-chloro-5-nitro) phenylpyridine to amino so as to obtain 2-(2-chloro-5-amino) phenylpyridine; finally, enabling the 2-(2-chloro-5-amino) phenylpyridine and 2-chloro-4-methyl sulfuryl benzaldehyde to make a catalytic reaction to generate the vismodegib. The synthesis method is low in price of raw materials, easy in raw material obtaining, simple and convenient to operate and less in consumption of a catalyst; the reaction product is high in yield, reaction conditions are mild, and aftertreatment is simple in technology and mainly adopts column separation, so that industrial mass production can be realized.
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Paragraph 0036; 0037; 0038
(2017/07/19)
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- Discovery of Fevipiprant (NVP-QAW039), a Potent and Selective DP2 Receptor Antagonist for Treatment of Asthma
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Further optimization of an initial DP2 receptor antagonist clinical candidate NVP-QAV680 led to the discovery of a follow-up molecule 2-(2-methyl-1-(4-(methylsulfonyl)-2-(trifluoromethyl)benzyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)acetic acid (compou
- Sandham, David A.,Barker, Lucy,Brown, Lyndon,Brown, Zarin,Budd, David,Charlton, Steven J.,Chatterjee, Devnandan,Cox, Brian,Dubois, Gerald,Duggan, Nicholas,Hall, Edward,Hatto, Julia,Maas, Janet,Manini, Jodie,Profit, Rachael,Riddy, Darren,Ritchie, Catherine,Sohal, Bindi,Shaw, Duncan,Stringer, Rowan,Sykes, David A.,Thomas, Matthew,Turner, Katharine L.,Watson, Simon J.,West, Ryan,Willard, Elisabeth,Williams, Gareth,Willis, Jennifer
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supporting information
p. 582 - 586
(2017/05/17)
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- USE OF PYRROLO [2 , 3-B] PYRIDINES TO PREPARE A MEDICAMENT FOR TREATING PAIN
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There are provided according to the invention compounds of formula (I), in free or salt form, wherein R1, R2, R3, R4, R5, R6, Q, W, X, m, n and p are as described in the specification, process for preparing them, and their use in the manufacture of a medicament for the treatment of neuropathic pain.
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Page/Page column 49
(2008/06/13)
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- ORGANIC COMPOUNDS
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There are provided according to the invention compounds of formula (I), in free or salt form, wherein R1, R2, R3, R4, R5, R6, Q, W, X, m, n and p are as described in the specification, process for preparing them, and their use as pharmaceuticals.
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Page/Page column 54
(2010/02/15)
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- INHIBITORS OF MONOAMINE UPTAKE
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N,N-disubstituted 4-amino-piperidines of the general Formula (I) are inhibitors of the uptake of serotonin and/or norepinephrine and/or dopamine. As such, they may be useful for the treatment of disorders of the central and/or peripheral nervous system.
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Page 153-154
(2010/02/07)
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