872726-33-5Relevant academic research and scientific papers
Diastereoconvergent synthesis of trans -5-hydroxy-6-substituted-2- piperidinones by addition-cyclization-deprotection process
Si, Chang-Mei,Huang, Wei,Du, Zhen-Ting,Wei, Bang-Guo,Lin, Guo-Qiang
, p. 4328 - 4331 (2014/09/30)
A diastereoselective one-pot approach to access trans-5-hydroxy-6- substituted-2-piperidinones by an addition-cyclization-deprotection process has been developed, in which the stereogenic center at the C-6 position was solely controlled by α-OTBS group. The utility of this transformation is demonstrated by the asymmetric synthesis of the enantiomer of (-)-CP-99,994.
Asymmetric synthesis of (2S,3R)-(-)-epi-CP-99,994 using sulfinimine-derived anti-2,3-diamino esters
Davis, Franklin A.,Zhang, Yanfeng
scheme or table, p. 5205 - 5207 (2009/12/06)
A differentially protected C-3 N-sulfinyl, C-2 N,N-(diphenylmethylene) 2,3-diamino ester was employed in the synthesis of the amino piperidine (2S,3R)-(-)-epi-CP-99,994. Key steps in the synthesis included the chemoselective hydrolysis of the C-2 N,N-(dip
Synthesis of (+)-CP-99,994 via Pd(0)-catalyzed asymmetric allylic and homoallylic C-H diamination of terminal olefin
Fu, Renzhong,Zhao, Baoguo,Shi, Yian
experimental part, p. 7577 - 7580 (2010/01/06)
(Chemical Equation Presented) This paper describes an asymmetric synthesis of the potent substance P receptor antagonist (+)-CP-99,994 from 4-phenyl-1-butene via Pd(0)-catalyzed asymmetric allylic and homoallylic C-H diamination. 2009 American Chemical So
A concise and practical catalytic asymmetric synthesis of (-)-CP-99,994 and (-)-L-733,061
Takahashi, Kouichi,Nakano, Hiroto,Fujita, Reiko
, p. 8927 - 8930 (2007/10/03)
A concise and practical catalytic asymmetric synthesis of (-)-CP-99,994 and (-)-L-733,061 was achieved. Key features involve the Pd-catalyzed asymmetric allylic amination and the ring-closing metathesis as key steps.
Enantioselective synthesis of NK-1 receptor antagonists (+)-CP-99,994 and (+)-CP-122,721
Yamazaki, Naoki,Atobe, Masakazu,Kibayashi, Chihiro
, p. 7979 - 7982 (2007/10/03)
An enantioselective total synthesis of NK-1 receptor antagonists, (+)-CP-99,994 and (+)-CP-122,721, is described. The key steps are diastereoselective addition of vinyllithium to a chiral benzaldehyde oxime ether and diastereoselective borane reduction of
Stereoselective synthesis of (+)-CP-99,994: A substance P non-peptide antagonist
Chandrasekhar,Mohanty, Pradyumna K.
, p. 5071 - 5072 (2007/10/03)
A highly stereoflexible total synthesis of (+)-CP-99,994 is achieved starting, from (S)-serine, key steps being a diastereoselective Grignard addition, a one-pot reductive protection of an azide, and one-pot oxidative Wittig olefination.
Preparation of substituted piperidines
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, (2008/06/13)
Substituted piperidines and related compounds of the formula STR1 wherein R1 and R2 are herein defined are disclosed.
3-aminopiperidine derivatives and related nitrogen containing heterocycles and pharmaceutical compositions and use
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, (2008/06/13)
The present invention relates to novel 3-aminopiperidine derivatives and related nitrogen containing heterocyclic compounds, and specifically, to compounds of the formula STR1 wherein R1, R2, R3, R4, R5/su
3-Aminopiperidine derivatives and related nitrogen containing heterocycles
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, (2008/06/13)
The present invention relates to novel 3-aminopiperidine derivatives and related nitrogen containing heterocyclic compounds, and specifically, to compounds of the formula wherein R1, R2, R3, R4, R5, R6, R7, Rsu
