148700-84-9Relevant articles and documents
Synthesis of 2-Arylpiperidines via pd-catalyzed arylation of aza-Achmatowicz rearrangement products with arylboronic acids
Zhao, Guodong,Canterbury, Daniel P.,Taylor, Alexandria P.,Cheng, Xiayun,Mikochik, Peter,Bagley, Scott W.,Tong, Rongbiao
supporting information, p. 458 - 463 (2020/01/21)
The first Pd-catalyzed arylation of aza-Achmatowicz rearrangement products with arylboronic acids is achieved, providing versatile 2-Aryldihydropyridinones for facile synthesis of highly functionalized 2-Arylpiperidines. Key to this arylation is the use of non-phosphine-ligand palladium precatalyst. The substrate scope is demonstrated with >26 examples, and the utility of 2-Aryldihydropyridinones is illustrated by the synthesis of a small collection of 2-Arylpiperidines with substituents or functional groups at any carbon (C2-C6) as well as two NK1 receptor antagonists (+)-CP-999,94 and (+)-L-733,060.
Preparation method of chiral ortho-amino alcohol intermediates, antagonists and analogues of antagonists
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, (2018/09/08)
The invention belongs to the field of chemical synthesis, relates to a preparation method of chiral ortho-amino alcohols and antagonists, and particularly relates to a preparation method of chiral ortho-amino alcohols and antagonists CP-122, 721 and L-733
Divergent syntheses of L-733, 060 and CP-122721 from functionalized pieridinones made by one-pot tandem cyclization
Liu, Yi-Wen,Mao, Zhuo-Ya,Ma, Rui-Jun,Yan, Jia-Hang,Si, Chang-Mei,Wei, Bang-Guo
, p. 2100 - 2108 (2017/03/17)
An efficient diastereoselective approach to access trans-5-hydroxy-6-substituted 2-piperidinones skeleton has been developed through one-pot intramolecular tandem process of O-benzyl protected aldimine 11 with Grignard reagents. The diastereoselectivity of substitution at C-6 position of 2-piperidinone was controlled by α-benzyloxy group. In addition, the utility of this straightforward cascade process is demonstrated by the asymmetric syntheses of (+)-L-733, 060 (2) and its 2-substituted analogue 3, as well as (+)-CP-122721 (5).
A Concise Enantioselective Synthesis of (+)-L-733,060 and (+)-T-2328 via Sequential Proline Catalysis
Lalwani, Komal G.,Sudalai, Arumugam
supporting information, p. 1339 - 1343 (2016/06/01)
A new, sequential proline-catalyzed approach to the synthesis of (+)-L-733,060 and (+)-T-2328 in high optical purity (93% ee) is described starting from phenyl N-Boc imine. The strategy involves proline-catalyzed Mannich reaction of an arylimine with acet
Concise enantioselective syntheses of (+)-L-733,060 and (2 S,3 S)-3-hydroxypipecolic acid by cobalt(III)(salen)-catalyzed two-stereocenter hydrolytic kinetic resolution of racemic azido epoxides
Devalankar, Dattatray A.,Chouthaiwale, Pandurang V.,Sudalai, Arumugam
supporting information, p. 102 - 104 (2014/01/06)
An efficient synthesis of the 2,3-disubstituted piperidines (+)-L-733,060 and (2S,3S)-3-hydroxypipecolic acid (≥99% ee) in high optical purity from commercially available starting materials is described. The strategy involves a cobalt-catalyzed hydrolytic
Synthesis of (+)-L-733,060, (+)-CP-99,994 and (2S,3R)-3-hydroxypipecolic acid: Application of an organocatalytic direct vinylogous aldol reaction
Pansare, Sunil V.,Paul, Eldho K.
experimental part, p. 2119 - 2125 (2012/04/17)
The γ-butenolide obtained from an organocatalyzed, direct vinylogous aldol reaction of γ-crotonolactone and benzaldehyde serves as the key starting material in the expedient synthesis of a 3-hydroxy-2-phenyl piperidine intermediate which is converted to the target 2,3-disubstituted piperidines.
A concise enantioselective synthesis of L-(-)-733,061 and (2S,3S)-methyl 3-aminopiperidine-2-carboxylate using catalytic enantioselective aza-Henry reaction as key step
Kumaraswamy, Gullapalli,Pitchaiah, Arigala
, p. 2536 - 2541 (2011/04/25)
An efficient enantioselective synthesis of L-(-)-733,061 and (2S,3S)-methyl 3-aminopiperidine-2-carboxylate is accomplished by means of catalytic enantioselective aza-Henry reaction. A key feature of this protocol is organocatalysis as genesis of chiralit
A stereoselective synthesis of (+)-L-733,060 from ethyl (R)-(+)-2,3-epoxypropanoate
Prevost, Sebastien,Phansavath, Phannarath,Haddad, Mansour
experimental part, p. 16 - 20 (2010/04/26)
An asymmetric synthesis of neurokinin substance P receptor antagonist (+)-L-733,060 starting from enantiomerically pure ethyl (R)-(+)-2,3-epoxypropanoate (ethyl glycidate) is described. The synthesis relies on a diastereoselective reductive amination, regioselective intramolecular epoxide opening, and in situ cyclization as the key steps.
Enantioselective synthesis of (+)- l -733,060 and (+)-CP-99,994: Application of an ireland-claisen rearrangement/michael addition domino sequence
Garrido, Narciso M.,García, Mercedes,Sánchez, M. Rosa,Díez, David,Urones, Julio G.
scheme or table, p. 387 - 390 (2010/04/05)
An efficient asymmetric synthesis of (+)-l-733,060, (-)-(2S,3R)-1 and (+)-CP-99,994, starting from a Baylis-Hillman adduct, is described. The key steps include a novel domino reaction: stereoselective Ireland-Claisen rearrangement, asymmetric Michael addi
Catalytic asymmetric synthesis of piperidines from pyrrolidine: Concisesynthesis of L-733,060
Bilke, Julia L.,Moore, Stephen P.,O'Brien, Peter,Gilday, John
supporting information; experimental part, p. 1935 - 1938 (2009/09/25)
Catalytic asymmetric deprotonation-aldehyde trapping-ring expansion from a 5- to a 6-ring delivers a concise route to each stereoisomer of -hydroxy piperidines starting from W-Boc pyrrolidine. The methodology is utilized in a 5-step catalytic asymmetric synthesis of the neorokinin-1 receptor antagonist, (+)-L-733,060.
