1204139-67-2

Upstream product

• 1240621-87-7 2-bromo-5-hydroxypyrimidine 
• 100-39-0 benzyl bromide 
• 42783-58-4 5-(benzyloxy)pyrimidin-2-amine 

Downstream Products

• 1204139-69-4 (2S)-(N-tert-butoxycarbonylamino)-3-(5'-benzyloxypyrimid-2'-yl)-propionic acid methyl ester 

Relevant academic research and scientific papers

ANTITUMOR EFFECT POTENTIATOR COMPRISING PYRROLOPYRIMIDINE COMPOUND

Disclosed is an antitumor effect potentiator for one or more other compounds having an antitumor effect, the antitumor effect potentiator comprising a novel pyrrolopyrimidine compound.

NOVEL PYRROLOPYRIMIDINE COMPOUND OR SALT THEREOF, PHARMACEUTICAL COMPOSITION CONTAINING SAME, ESPECIALLY AGENT FOR PREVENTION AND/OR TREATMENT OF TUMORS ETC BASED ON NAE INHIBITORY EFFECT

An object to be solved by the present invention is to provide a novel pyrrolopyrimidine compound or a salt thereof having an NAE inhibitory action and a cell growth inhibitory effect. The present invention provides a compound or a salt thereof represented by Formula (A), as well as an NAE inhibitor, a pharmaceutical composition, and an antitumor agent comprising the compound or a salt thereof as an active ingredient.

Tyrosine analogues for probing proton-coupled electron transfer processes in peptides and proteins

A series of amino acids analogous to tyrosine, but differing in the physicochemical properties of the aryl alcohol side chain, have been prepared and characterized. These compounds are expected to be useful in understanding the relationships between structure, thermodynamics, and kinetics in long-range proton-coupled electron transfer processes in peptides and proteins. Systematic changes in the acidity, redox potential, and O-H bond strength of the tyrosine side chain could be induced upon substituting the phenol for pyridinol and pyrimidinol moieties. Further modulation was possible by introducing methyl and t-butyl substitution in the position ortho to the phenolic hydroxyl. The unnatural amino acids were prepared by Pd-catalyzed cross-coupling of the corresponding halogenated aryl alcohol protected as their benzyl ethers with an organozinc reagent derived from N-Boc L-serine carboxymethyl ester. Subsequent debenzylation by catalytic hydrogenation yielded the tyrosine analogues in good yield. Spectrophotometric titrations revealed a decrease in tyrosine pK a of ca. 1.5 log units per included nitrogen atom, along with a corresponding increase in the oxidation (peak) potentials of ca. 200 mV, respectively. All told, the six novel amino acids described here have phenol-like side chains with pKa's that span a range of 7.0 to greater than 10, and an oxidation (peak) potential range of greater than 600 mV at and around physiological pH. Radical equilibration EPR experiments were carried out to reveal that the O-H bond strengths increase systematically upon nitrogen incorporation (by ca. 0.5-1.0 kcal/mol), and radical stability and persistence increase systematically upon introduction of alkyl substitution in the ortho positions. The EPR spectra of the aryloxyl radicals derived from tyrosine and each of the analogues could be determined at room temperature, and each featured distinct spectral properties. The uniqueness of their spectra will be helpful in discerning one type of aryloxyl in the presence of other possible aryloxyl radicals in peptides and proteins with multiple tyrosine residues between which electrons and protons can be transferred.