[EN] ARYL AND ARYLALKYL SUBSTITUTED PYRAZOLYL AND PYRIMIDINYL TRICYCLIC ENONES AS ANTIOXIDANT INFLAMMATION MODULATORS [FR] PYRAZOLYLE SUBSTITUÉ PAR UN ARYLE ET ARYLALKYLE ET PYRIMIDINYL ÉNONES TRICYCLIQUES COMME MODULATEURS ANTIOXYDANTS DE L'INFLAMMATION
Pyrimidine-Derived Prolinamides as Recoverable Bifunctional Organocatalysts for Enantioselective Inter- and Intramolecular Aldol Reactions under Solvent-Free Conditions
作者:Pascuala Vizcaíno-Milla、José M. Sansano、Carmen Nájera、Béla Fiser、Enrique Gómez-Bengoa
DOI:10.1002/ejoc.201500007
日期:2015.4
ChiralL-prolinamides 2 containing the (R,R)- and (S,S)-trans-cyclohexane-1,2-diamine scaffold and a 2-pyrimidinyl unit are synthesized and used as general organocatalysts for intermolecular and intramolecular aldolreactions with 1,6-hexanedioic acid as a co-catalyst under solvent-free conditions. The intermolecular reaction between ketone–aldehyde and aldehyde–aldehyde must be performed under wet
Recoverable silica-gel supported binam-prolinamides as organocatalysts for the enantioselective solvent-free intra- and intermolecular aldol reaction
作者:Abraham Bañón-Caballero、Gabriela Guillena、Carmen Nájera、Enrico Faggi、Rosa María Sebastián、Adelina Vallribera
DOI:10.1016/j.tet.2012.11.097
日期:2013.1
supported binam-derived prolinamides are efficient organocatalysts for the direct intramolecular and intermolecular aldol reaction under solvent-free conditions using conventional magnetic stirring. These organocatalysts in combination with benzoic acid showed similar results to those obtained under similar homogeneous reaction conditions using an organocatalyst of related structure. For the intermolecular process
ARYL AND ARYLALKYL SUBSTITUTED PYRAZOLYL AND PYRIMIDINYL TRICYCLIC ENONES AS ANTIOXIDANT INFLAMMATION MODULATORS
申请人:AbbVie Inc.
公开号:US20150225397A1
公开(公告)日:2015-08-13
The present application relates to: (a) compounds of Formula (I):
and salts thereof, wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, m, n, X and Y are as defined in the specification; (b) compositions comprising such compounds and salts; and (c) methods of use of such compounds, salts, and compositions, particularly use for the treatment and prevention of diseases such as those associated with oxidative stress and inflammation.
A series of Wieland-Miescher ketone analogues bearing highly functionalized substituents are efficiently constructed in high enantioselectivities and good yields using catalytic amounts of prolinamide and PPTS. We have successfully utilized this reaction as a key step to synthesize the tricyclic core of cylindricine type alkaloids.
Organocatalytic Sequential One-Pot Double Cascade Asymmetric Synthesis of Wieland−Miescher Ketone Analogues from a Knoevenagel/Hydrogenation/Robinson Annulation Sequence: Scope and Applications of Organocatalytic Biomimetic Reductions
作者:Dhevalapally B. Ramachary、Mamillapalli Kishor
DOI:10.1021/jo070277i
日期:2007.7.1
practical and novel organocatalytic chemo- and enantioselective process for the cascade synthesis of highly substituted 2-alkyl-cyclohexane-1,3-diones and Wieland−Miescher (W−M) ketone analogs is presented via reductive alkylation as a key step. First time, we developed the one-step alkylation of dimedone and 1,3-cyclohexanedione with aldehydes and Hantzsch ester through an organocatalytic reductive alkylation