[EN] NEW HISTONE DEACETYLASE INHIBITORS BASED SIMULTANEOUSLY ON TRISUBSTITUTED 1H-PYRROLES AND AROMATIC AND HETEROAROMATIC SPACERS [FR] NOUVEAUX INHIBITEURS D'HISTONE DÉSACÉTYLASE BASÉS À LA FOIS SUR DES 1H-PYRROLES TRISUBSTITUÉS ET DES GROUPES ESPACEURS AROMATIQUES ET HÉTÉROAROMATIQUES
A Brønsted Acid Catalyzed Cascade Reaction for the Conversion of Indoles to α‐(3‐Indolyl) Ketones by Using 2‐Benzyloxy Aldehydes
作者:Ankush Banerjee、Modhu Sudan Maji
DOI:10.1002/chem.201902268
日期:2019.9.2
A Brønstedacid catalyzed, operationally simple, scalable route to several functionalized α-(3-indolyl) ketones has been developed and the long-standing regioisomeric issue has been eliminated by choosing appropriate carbonyls. A readily available and cheap bottle reagent was used as the catalyst. This protocol was also applicable to the synthesis of densely functionalized α-(3-pyrrolyl) ketones. A
NEW HISTONE DEACETYLASE INHIBITORS BASED SIMULTANEOUSLY ON TRISUBSTITUTED 1H-PYRROLES AND AROMATIC AND HETEROAROMATIC SPACERS
申请人:Cossío Mora Fernando Pedro
公开号:US20120196885A1
公开(公告)日:2012-08-02
The present invention refers to compounds derived from trisubstituted 1H-pyrrole rings and aromatic rings, which have the following formula (I):
wherein:
R
1
and R
2
represent, independently, an optionally substituted C
6
-C
10
aryl radical or an optionally substituted heteroaryl radical;
A and M represent, independently, a methylene group or a single bond, in which case the adjacent aromatic ring would be attached directly to the amide group;
the Y═Z group represents together and indistinctly an oxygen atom, a sulfur atom, a cis-vinylidene group, an imino group, or a methine group with a sp
2
-hybridized carbon atom;
X represents indistinctly a methine group, a cis-vinylidene group or a nitrogen atom; and
W represents a hydroxyl group, an optionally substituted C
1
-C
6
alkyl group, an optionally substituted heteroaryl group or an optionally substituted C
6
-C
10
aryl group;
or a salt, solvate or prodrug thereof,
as well as to the process for their preparation and the use thereof for the treatment of cancer.
DBU-promoted tandem Michael-addition/cyclization for the synthesis of polysubstituted pyrroles
作者:Tianyu Yang、Ke-Hu Wang、Danfeng Huang、Pengfei Li、Zhoubin Deng、Yinpeng Su、Yulai Hu
DOI:10.1016/j.tet.2019.02.057
日期:2019.4
An efficient and transition-metal-free method for the synthesis of the structurally diversified pyrroles is described. Various α,β-unsaturated ynones reacted with N-substituted ethyl glycine ethyl ester hydrochlorides in the presence of DBU to form the corresponding products in good yields. This protocol has the advantages of readily available starting materials, mild reaction conditions and a wide
C3-Alkenylation between Pyrroles and Aldehydes Mediated by a Brønsted Acid and a Brønsted Base
作者:Samrat Sahu、Avijit Roy、Mahadeb Gorai、Sudip Guria、Modhu Sudan Maji
DOI:10.1002/ejoc.201901228
日期:2019.10.9
A redox‐neutral, organocatalytic C3‐alkenylation of pyrroles is reported. Readily available aldehydes act as alkenylating agent, and the reaction tolerates a variety of functional groups. The E‐alkenylated products were isolated in moderate to exclusive selectivity. A one‐pot two‐fold alkenylation strategy was also developed. Synthetically challenging indolylpyrrole derivatives were synthesized using
Formation of γ-Oxoacids and 1<i>H</i>-Pyrrol-2(5<i>H</i>)-ones from α,β-Unsaturated Ketones and Ethyl Nitroacetate
作者:Maialen Aginagalde、Tamara Bello、Carme Masdeu、Yosu Vara、Ana Arrieta、Fernando P. Cossío
DOI:10.1021/jo101388x
日期:2010.11.5
Michael addition of ethyl nitroacetate on α,β-unsaturatedketones followed by Nef oxidation under hydrolytic conditions yields γ-oxoacids instead of the corresponding α,δ-dioxoesters. A concerted decarboxylation step is proposed on the basis of computational results. Finally, conversion of the γ-ketoacids thus prepared into 1H-pyrrol-2(5H)-ones by reaction with primary amines under Paal−Knorr conditions