136827-59-3Relevant academic research and scientific papers
ZINC-BINDER BASED EBNA1-SPECIFIC COMPOUNDS
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, (2019/08/08)
The present disclosure relates to compounds useful in the treatment, imaging, and/or diagnosis of Epstein-Barr virus (EBV)-positive cells, such as cancer.
METHOD FOR PRODUCING DICARBOXYLIC ACID COMPOUND
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Paragraph 0142-0144, (2018/06/09)
It is an object of the present invention to provide an excellent method for producing an excellent therapeutic agent. The solution of the present invention is as shown in the following scheme: wherein R1 represents a C1-C6 alkyl group, R2 represents a C1-C6 alkyl group, and R3 represents a C1-C6 alkyl group.
Model Guided Development of a Simple Catalytic Method for the Synthesis of Unsymmetrical Stilbenes by Sequential Heck Reactions of Aryl Bromides with Ethylene
Barlow, Helen,Buser, Jonas Y.,Glauninger, Hendrik,Luciani, Carla V.,Martinelli, Joseph R.,Oram, Niall,Thompson-Van Hook, Nichole,Richardson, Jeffery
supporting information, p. 2678 - 2690 (2018/06/04)
Stilbenes are important and useful structural moieties, but methods for their preparation typically possess numerous inefficiencies. Presented here is a methodology for the two-step, one pot preparation of unsymmetrical stilbenes via sequential Heck reactions. The first Heck reaction with ethylene gas was analysed as a function of temperature and pressure for electronically differentiated naphthyl bromides and model-aided reaction optimization was utilized to define the system. In addition, reactNMR was utilized to determine ethylene solubility in common organic solvents useful for Heck reactions. Finally, an optimized sequential Heck reaction process was developed and applied to a range of substrates allowing for efficient preparation of unsymmetrical stilbenes, including the natural antioxidant, pterostilbene. (Figure presented.).
Chemoselective and Sequential Palladium-Catalyzed Couplings for the Generation of Stilbene Libraries via Immobilized Substrates
Traficante, Carla I.,Fagundez, Catherine,Serra, Gloria L.,Mata, Ernesto G.,Delpiccolo, Carina M. L.
supporting information, p. 225 - 229 (2016/06/01)
A versatile palladium-catalyzed tandem synthetic sequence to afford E-stilbenes libraries has been developed. Excellent regio- and stereocontrol have been achieved by means of the sequence of Hiyama and Heck cross-couplings. Undesirable homocoupling bypro
Variation of formal hydrogen-bonding networks within electronically delocalized π-conjugated oligopeptide nanostructures
Wall, Brian D.,Zhou, Yuecheng,Mei, Shao,Ardoa, Herdeline Ann M.,Ferguson, Andrew L.,Tovar, John D.
, p. 11375 - 11385 (2015/01/08)
This photophysical study characterizes the generality of intermolecular electronic interactions present within nanomaterials derived from self-assembling oligopeptides with embedded π-conjugated oligophenylenevinylene (OPV) subunits stilbene and distyrylbenzene that in principle present two distinct β-sheet motifs. Two different synthetic approaches led to oligopeptides that upon self-assembly are expected to self-assemble into multimeric aggregates stabilized by β-sheet-like secondary structures. The target molecules express either two C-termini linked to the central OPV core (symmetric peptides) or the more common N-termini to C-termini polarity typical of natural oligopeptides (nonsymmetric peptides). Both peptide secondary structures were shown to form extended 1-D peptide aggregates with intimate intermolecular π-electron interactions. Differences in length of the π-conjugated OPV segments resulted in differing extents of intermolecular interactions and the resulting photophysics. The peptides containing the shorter stilbene (OPV2) units showed little ground state interactions and resulted in excimeric emission, while the longer distyrylbenzene (OPV3) peptides had different ground state interactions between adjacent π-conjugated subunits resulting in either perturbed electronic properties arising from exciton coupling or excimer-like excited states. Molecular dynamics simulations of nascent aggregate formation predict peptide dimerization to be a spontaneous process, possessing thermodynamic driving potentials in the range 2-6 kcal/mol for the four molecules considered. Antiparallel stacking of the peptides containing an OPV3 subunit is thermodynamically favored over the parallel orientation, whereas both arrangements are equally favored for the peptides containing an OPV2 subunit. This study validates the generality of peptide-π-peptide self-assembly to provide electronically delocalized supramolecular structures and suggests flexibility in peptide sequence design as a way to tune the material properties of π-conjugated supramolecular polymers.
TETRAHYDROBENZOTHIOPHENE COMPOUND
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Paragraph 0102, (2013/03/26)
The purpose is to provide a compound which has an intestinal phosphate transporter (NPT-IIb) inhibitory action and is useful as an active ingredient of an agent for treating and/or preventing hyperphosphatemia. A tetrahydrobenzothiophene compound of the following formula (I) has NPT-IIb inhibitory action and can be used as an agent for treating and/or preventing hyperphosphatemia: wherein, R1 represents -O-lower alkyl, -lower alkylene-phenyl, or the like; R2 and R3 are the same as or different from each other and represent H, lower alkyl, cycloalkyl, aryl, heteroaryl or the like, or, R2 and R3 may be combined with a nitrogen atom to which they bind to form 5- to 7-membered saturated cyclic amino; R4,s are the same as or different from each other and represent halogen, lower alkyl; and n represents 0 to 2.
Synthesis of functional olefins using the Wittig-Horner reaction in different media
Durantini, Edgardo N.
, p. 4201 - 4222 (2007/10/03)
A convenient procedure for the synthesis of E-olefins bearing electron donor-acceptor groups is reported. A new diethyl N-aryl aminobenzylphosphonate (1d) was synthesized. Reactivity of Wittig-Horner reaction is compared. Expansion of the π-conjugate chain involves the reduction of N-methoxy-N-methyl amide to aldehyde by reaction with DIBAL-H.
