74809-50-0

Upstream product

• 61240-20-8 triphenyl-(3,4,5-trimethoxybenzyl)phosphonium bromide 
• 1122-91-4 4-bromo-benzaldehyde 
• 3840-30-0 5-(chloromethyl)-1,2,3-trimethoxybenzene 
• 3840-31-1 (3,4,5-trimethoxyphenyl)methanol 
• 134029-74-6 [(3,4,5-trimethoxyphenyl)methyl]phosphoric acid diethyl ester 
• 6443-69-2 3,4,5-trimethoxytoluene 
• 1613-97-4 (E)-1-(4-bromophenyl)-N-phenylmethanimine 
• 21852-50-6 3,4,5-trimethoxybenzyl bromide 
• 1445712-87-7 trimethyl(3,4,5-trimethoxybenzyl)silane 
• 118-41-2 Eudesmic acid 

Relevant academic research and scientific papers

Neuroprotective and Antineuroinflammatory Effects of Hydroxyl-Functionalized Stilbenes and 2-Arylbenzo[b]furans

The drugs currently used to treat Alzheimer’s disease (AD) are limited in the benefits they confer, and no medication has been clearly proven to cure or delay the progression of AD. Most candidate AD drugs are meant to reduce the production, aggregation,

Stereoselective peterson olefinations from bench-stable reagents and N-phenyl imines

The synthesis of bench-stable α,α-bis(trimethylsilyl)toluenes and tris(trimethylsilyl)methane is described and their use in stereoselective Peterson olefinations has been achieved with a wide substrate scope. Product stereoselectivity was poor with carbonyl electrophiles (E/Z ～1:1 to 4:1) though this was significantly improved by employing the corresponding substituted N-benzylideneaniline (up to 99:1) as an alternative electrophile. The olefination byproduct was identified as N,N-bis(trimethylsilyl)aniline and could be easily separated from product by aqueous acid extraction. Evidence for an autocatalytic cycle has been obtained.

Synthesis and bioactivity of resveratrol analogues

It has been reported that resveratrol enhanced SIRT1 expression and significantly mimicked calorie restriction by stimulating Sir2 which is the most homologic homologue of SIRT1 of mammalian. A series of novel resveratrol derivatives were designed and synthesized as novel SIRT1 activator candidates. These synthesized compounds were characterized by spectral (1H NMR) analysis and examined for their Sir2 activation against yeast parental strain-BY4743 at a concentration of 100 μM/L by Bioscreen C MBR machine. Several compounds showed a promising Sir2 activation activity compared with resveratrol. Meanwhile, the structure-activity relationships with Sirt2 activation activities were also discussed.

One-pot, fluoride-promoted wittig reaction

A one-pot, fluoride-promoted Wittig reaction was developed. The reactions of ethyl -bromoacetate with aliphatic, aromatic, and heteroaromatic aldehydes in the presence of tri-n-butylphosphine and tetrabutylammonium fluoride produced ,-unsaturated esters in good to excellent yields and E-stereoselectivity. Under the same conditions, reactions of ethyl -bromopropionate, -bromo acetonitrile, and -bromoacetophenone with aliphatic and aromatic aldehydes in the presence of tri-n-butylphosphine and tetrabutylammonium fluoride produced the expected ,-unsaturated derivatives in good E-stereoselectivity. The protocol was extended to semistabilized ylides and applied to the synthesis of some combretastatin analogs.

Synthesis and Evaluation of Stilbene and Dihydrostilbene Derivatives as Potential Anticancer Agents That Inhibit Tubulin Polymerization

An array of cis-, trans-, and dihydrostilbenes and some N-arylbenzylamines were synthesized and evaluated for their cytotoxicity in the five cancer cell cultures A-549 lung carcinoma, MCF-7 breast carcinoma, HT-29 colon adenocarcinoma, SKMEL-5 melanoma, a

Sythesis of 2,2'-Diacyl-1,1'-biaryls. Regiocontrolled Protection of Ketones in Unsymmetrically Substituted 9,10-Phenanthrenequinones

A regiocontrolled monoketalization of unsymmetrically substituted phenanthrenequinones by use of 2,2-dimethyl-1,3-propanediol as the ketalizing reagent has been effected with the help of bromo substitution in one of the aromatic rings at the C-1 or C-8 po