28537-62-4Relevant articles and documents
Graphene Oxide as a Carbocatalyst for a Diels–Alder Reaction in an Aqueous Medium
Girish, Yarabhally R.,Pandit, Subrata,Pandit, Subhendu,De, Mrinmoy
, p. 2393 - 2398 (2017/09/11)
The Diels–Alder (DA) reaction, a [4+2] cycloaddition reaction, is highly important in synthetic organic chemistry and is frequently used in the synthesis of natural products containing six-membered rings. Herein, we report an efficient protocol for the DA reaction between 9-hydroxymethylanthracene and N-substituted maleimides using two-dimensional graphene oxide (GO) as a heterogeneous carbocatalyst in an aqueous medium at room temperature. High yields, a wide substrate scope, low temperature, excellent functional group tolerance, atom economy, and water as a green solvent are noteworthy features of this protocol. The heterogeneous GO catalyst can be easily recovered and used multiple times without any significant loss in catalytic activity.
N-Phenyl and N-phenylalkyl-maleimides acting against Candida spp.: Time-to-kill, stability, interaction with maleamic acids
Sortino, Maximiliano,Cechinel Filho, Valdir,Correa, Rogerio,Zacchino, Susana
, p. 560 - 568 (2008/09/18)
N-Phenyl and N-phenylalkyl maleimides (alkyl chain = (CH2)n; n = 0-4) and their respective open derivatives (maleamic acids) were evaluated against Candida spp. with the microbroth dilution method following the guidelines of CLSI (formely NCCLS). MIC values of maleimides without pre-incubation and submitted to different pre-incubation times into the growth media, time-to-kill studies as well as a time-dependent UV-spectroscopy study of the maleimides in water, led to determine that maleimides display antifungal activities with their intact maleimide ring, being in addition their activities not dependent on the length of the alkyl chain. They are not only fungistatic but fungicidal with very low MICs and MFCs, displaying strong fungicide activities not only against standardized but also clinical isolates of Candida albicans and non-albicans Candida spp.
SAR and 3D-QSAR studies on thiadiazolidinone derivatives: Exploration of structural requirements for glycogen synthase kinase 3 inhibitors
Martinez, Ana,Alonso, Mercedes,Castro, Ana,Dorronsoro, Isabel,Gelpí, J. Luis,Luque, F. Javier,Pérez, Conceptión,Moreno, Francisco J.
, p. 7103 - 7112 (2007/10/03)
The 2,4-disubstituted thiadiazolidinones (TDZD) are described as the first ATP-noncompetitive GSK-3 inhibitors. Following an SAR study about TDZD, different structural modifications in the heterocyclic ring aimed to test the influence of each heteroatom o
