A pyrrolidine-mediated Knoevenagel-type reaction for highlystereoselective construction of novel α-halo-1,3-dienylsulfonyl fluorides was achieved in up to 100% Z-selectivity and high yields at room temperature from condensation of the readily available aldehydes and halomethanesulfonyl fluorides. This protocol provided a class of unique α-halo-1,3-dienylsulfonyl fluorides with wide scope and excellent
[EN] HISTONE DEACETYLASE INHIBITORS AND COMPOSITIONS AND METHODS OF USE THEREOF<br/>[FR] INHIBITEURS D'HISTONE DÉSACÉTYLASE, ET COMPOSITIONS ET PROCÉDÉS POUR LES UTILISER
申请人:CHDI FOUNDATION INC
公开号:WO2012103008A1
公开(公告)日:2012-08-02
Provided are certain histone deacetylase (HDAC) inhibitors of Formula I, compositions thereof, and methods of their use.
An expeditious synthesis of epibatidine and analogues
作者:Ganesh Pandey、Trusar D. Bagul、G. Lakshmaiah
DOI:10.1016/0040-4039(94)85336-3
日期:1994.10
An efficient synthesis of Epibatidine and its analogues via [3+2] cycloaddition of non-stabilised azomethine ylide and substituted 6-chloro-3-vinyl pyridine.
Selective Access to Both Diastereoisomers in an Enantioselective Intramolecular Michael Reaction by Using a Single Chiral Organocatalyst and Application in the Formal Total Synthesis of (−)-Epibatidine
作者:Kim L. Jensen、Christian F. Weise、Gustav Dickmeiss、Fabio Morana、Rebecca L. Davis、Karl Anker Jørgensen
DOI:10.1002/chem.201202353
日期:2012.9.17
Two in one: Both diastereoisomers of 4‐nitro‐3‐substituted cyclohexanones are accessed selectively by an intramolecular Michael reaction using a single chiral aminocatalyst (see scheme). Mechanistic studies show that the reaction is selective for the cis‐diastereoisomer and that the trans‐diastereoisomer arises over time. DFT calculations suggest that the cis‐selectivity is due to a favorable electrostatic