50425-23-5

Upstream product

• 1916-07-0 3,4,5-trimethoxybenzoic acid methyl ester 
• 5081-42-5 3,4,5-trimethoxy-2-nitrobenzoic acid methyl ester 
• 118-41-2 Eudesmic acid 
• 66907-52-6 3,4,5-trimethoxy-2-nitrobenzoic acid 

Downstream Products

• 1303996-04-4 C₁₆H₂₃ClN₂O₆ 
• 1303996-01-1 C₁₆H₂₄N₂O₇ 
• 1303996-03-3 C₂₆H₃₃N₃O₁₃ 

Relevant academic research and scientific papers

Synthesis, biological evaluation and molecular docking studies of 2-amino-3,4,5-trimethoxyaroylindole derivatives as novel anticancer agents

A series of novel 2-amino-3,4,5 trimethoxyaroylindole derivatives was synthesized and evaluated against selected human cancer cell lines of breast (MCF-7) and colon (HT-29). Introduction of an amino group at the C-2 position on ring A of 3,4,5-trimethoxyaroylindole derivatives resulted in novel compounds, i.e., 2-amino-3,4,5-trimethoxyaroylindole derivatives exhibiting excellent cytotoxic activity against human cancer cell lines. Substitution with methoxy group at R6 in 2-amino-3,4,5-trimethoxyaroylindole 5d exhibited excellent cytotoxic activity against MCF-7 (0.013 μM) and colon HT-29 (0.143 μM) indicating slightly higher potency than Combretastatin A-4. Molecular modeling studies of 2-amino-3,4,5-trimethoxyaroylindole derivatives have similar structural alignment as colchicine in protein (PDB code: 1SA0) and exhibited hydrogen bond interaction between para position of 3,4,5-trimethoxyphenyl ring with CYS 241 and N-H molecule of indole ring with Val 315 of receptor molecule.

Cr/Ni-catalyzed vinylation of aldehydes: A mechanistic study on the catalytic roles of nickel and chromium

The roles of nickel and chromium catalysts in the coupling reaction of vinyl halides and aldehydes, the so-called Nozaki-Hiyama-Kishi (NHK) reaction, have been studied by UV/Vis spectroscopy, electrochemical, and spectroelectrochemical methods. Electrochemical studies revealed that nickel plays the central role in activating the vinyl halide by reductive cleavage, to form a rapidly decomposing vinyl-Ni species. The latter can, however, be stabilized in the presence of the Cr complex. The redox behavior of the Ni complexes in the presence of vinyl halide demonstrated that the vinyl halide activation results from interaction with a one-electron reduced nickel species [formally NiI], not necessarily with a Ni0 species. It was furthermore shown by UV/Vis spectroscopy and spectroelectrochemical methods that low-valent nickel [Ni0] results from the interaction of the NiII catalyst with CrCl2. It takes two to tango! The initial stages of the Cr/Ni-catalyzed vinylation of aldehydes (the Nozaki-Hiyama-Kishi reaction) were analyzed by electrochemical methods. The role of low-valent nickel in the C-halogen(Hal) cleavage of the vinyl halide was established, as well as the generation of the former from NiII and CrII. Copyright

Pyrrolobenzodiazepines

Compounds of the formulae Ia and Ib: wherein:A is CH2, or a single bond;R2 is selected from: R, OH, OR, CO2H, CO2R, COH, COR, SO2R, CN;R6, R7 and R9 are independently selected from H, R, OH, OR, halo, amino, NHR, nitro, Me3Sn;and R8 is selected from H, R, OH, OR, halo, amino, NHR, nitro, Me3Sn, where R is as defined above, or the compound is a dimer with each monomer being the same or different and being of formula Ia or Ib, where the R8 groups of the monomers form together a bridge having the formula -X-R'-X- linking the monomers, where R' is an alkylene chain containing from 3 to 12 carbon atoms, which chain may be interrupted by one or more hetero-atoms and/or aromatic rings and may contain one or more carbon-carbon double or triple bonds, and each X is independently selected from O, S, or N; except that in a compound of formula Ia when A is a single bond, then R2 is not CH=CH(CONH2) or CH=CH(CONMe2). Other related compounds are also disclosed.