120355-42-2Relevant articles and documents
RUTHENIUM TETRAOXIDE: A MILD REAGENT FOR THE OXIDATION OF 2',3'-O-ISOPROPYLIDENE PURINE NUCLEOSIDES
Singh, Ambarish K.,Varma, Rajender S.
, p. 2307 - 2310 (1992)
2',3'-O-Isopropylidene purine nucleosides have been oxidized with ruthenium tetraoxide to provide the corresponding 5'-carboxylic acids in quantitative yields under neutral conditions.
Synthesis and evaluation of adenosine derivatives as A1, A2A, A2B and A3 adenosine receptor ligands containing boron clusters as phenyl isosteres and selective A3 agonists
Bednarska-Szczepaniak, Katarzyna,Gao, Zhan-Guo,Jacobson, Kenneth A.,Karolczak, Kamil,Kierozalska, Aleksandra,Mieczkowski, Adam,Przygodzki, Tomasz,Rao, Harsha,G??ba?a, Konrad,Le?nikowski, Zbigniew J.,Pavlovi? Safti?, Dijana,Stańczyk, Lidia,Wata?a, Cezary
, (2021/06/26)
A series of adenosine and 2′-deoxyadenosine pairs modified with a 1,12-dicarba-closo-dodecaborane cluster or alternatively with a phenyl group at the same position was synthesized, and their affinity was determined at A1, A2A, A2B and A3 adenosine receptors (ARs). While AR affinity differences were noted, a general tendency to preferentially bind A3 AR over other ARs was observed for most tested ligands. In particular, 5′-ethylcarbamoyl-N6-(3-phenylpropyl)adenosine (18), N6-(3-phenylpropyl)-2-chloroadenosine (24) and N6-(3-phenylpropyl)adenosine (40) showed nanomolar A3 affinity (Ki 4.5, 6.4 and 7.5 nM, respectively). Among the boron cluster-containing compounds, the highest A3 affinity (Ki 206 nM) was for adenosine derivative 41 modified at C2. In the matched molecular pairs, analogs bearing boron clusters were found to show lower binding affinity for adenosine receptors than the corresponding phenyl analogs. Nevertheless, interestingly, several boron cluster modified adenosine ligands showed significantly higher A3 receptor selectivity than the corresponding phenyl analogs: 7 vs. 8, 15 vs. 16, 17 vs. 18.
SELECTIVE INHIBITORS OF PROTEIN ARGININE METHYLTRANSFERASE 5
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Paragraph 00505-00506, (2020/10/20)
The disclosure is directed to methods of treating disease using compounds of Formula I, Formula II, Formula III, Formula IV, Formula V, or Formula VI:
Semisynthesis, characterization and evaluation of new adenosine derivatives as antiproliferative agents
Zurita, Francisco Valdés,Vega, Nelson Brown,Cabrera, Margarita Gutiérrez
, (2018/05/22)
We describe the semisynthesis and biological effects of adenosine derivatives, which were anticipated to function as agonists for the A3 receptor. Molecular docking was used to select candidate compounds. Fifteen nucleoside derivatives were obtained through nucleophilic substitutions of the N6-position of the nucleoside precursor 6-chloropurine riboside by amines of different origin. All compounds were purified by column chromatography and further characterized by spectroscopic and spectrometric techniques, showing moderate yield. These molecules were then evaluated for their antiproliferative activity in human gastric cancer cells expressing the A3 receptor. We found that the compounds obtained have antiproliferative activity and that new structural modifications can enhance their biological activity. The ADME (Absorption, Distribution, Metabolism and Excretion) properties of the most active compounds were also evaluated theoretically.
SELECTIVE INHIBITORS OF PROTEIN ARGININE METHYLTRANSFERASE 5 (PRMT5)
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Paragraph 00511, (2018/09/12)
The disclosure is directed to compounds of Formula I, Formula II, Formula III, Formula IV, Formula V, or Formula VI: Methods of their use in inhibiting a protein arginine methyltransferase 5 (PRMT5) enzyme and treating disease, as well as methods of their preparation are also described.
Design and Synthesis of Novel Dual-Action Compounds Targeting the Adenosine A2A Receptor and Adenosine Transporter for Neuroprotection
Chen, Jhih-Bin,Liu, Eric Minwei,Chern, Ting-Rong,Yang, Chieh-Wen,Lin, Chia-I,Huang, Nai-Kuei,Lin, Yun-Lian,Chern, Yijuang,Lin, Jung-Hsin,Fang, Jim-Min
experimental part, p. 1390 - 1400 (2012/06/30)
A novel compound, N6-(4-hydroxybenzyl)adenosine, isolated from Gastrodia elata and which has been shown to be a potential therapeutic agent for preventing and treating neurodegenerative disease, was found to target both the adenosine A2A/
PROCESS FOR THE SYNTHESIS OF IB-MECA
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Page/Page column 31; 36, (2008/12/07)
The present disclosure provides a method for the synthesis of IB-MECA. More specifically, the present disclosure provides a simple and high yield method for Good Manufacturing Production (GMP) of IB-MECA. The method involves the reaction of 6-halopurine-9
Solid phase synthesis and antiprotozoal evaluation of di- and trisubstituted 5′-carboxamidoadenosine analogues
Rodenko, Boris,Detz, Remko J.,Pinas, Victorine A.,Lambertucci, Catia,Brun, Reto,Wanner, Martin J.,Koomen, Gerrit-Jan
, p. 1618 - 1629 (2007/10/03)
The rapid increase of resistance to drugs commonly used in the treatment of tropical diseases such as malaria and African sleeping sickness calls for the prompt development of new safe and efficacious drugs. The pathogenic protozoan parasites lack the cap
PROCESSES FOR PRODUCTION OF NUCLEOSIDES
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Page/Page column 20, (2008/06/13)
The present invention relates to a production method of a nucleoside compound represented by the formula [II] which includes subjecting a 2',3',5'-triacyloxynucleoside compound represented by the formula [I] to deacylation using alkali metal hydroxide in a 0.01- to 0.5-fold amount in a molar ratio relative to the 2',3',5'-triacyloxynucleoside compound. According to the present invention, a production method of a nucleoside compound of the formula [II] which suppresses a by-product, and a production method of a nucleoside derivative which utilizes this method can be provided. In addition, the present invention relates to oxidation of a nucleoside compound represented by the formula (1) in the presence of a 2,2,6,6-tetramethylpiperidine-1-oxy catalyst, and hypochlorite or hypobromite, while adjusting pH to fall within the range of 5-9, and further, extracting a nucleoside-carboxylic acid compound represented by the formula (2) into an organic solvent under acidic conditions, back-extracting the compound from the organic solvent into an aqueous alkali solution, and neutralizing the aqueous alkali solution by adding an acid thereto to allow precipitation of a crystal. Thus, a highly pure particular nucleoside-carboxylic acid compound or a salt thereof can be produced by a method suitable for industrial production: wherein each symbol is as defined in the Description.
THERAPEUTIC COMPOUNDS
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Page/Page column 48, (2008/06/13)
Use of compounds of general formula (A) as medicaments is described, in particular for the treatment of pain or inflammation; wherein: (I) when X = OH, R2 = NH2, R5 = CH2OH, R6 = H , R1 is C5-C6 alkoxy, OCH2Cyclopropyl, O-(2,2,3,3-tetrafluoro-cycloButyl), phenoxy, substituted phenoxy, OCH2CH2OH, or OCH2CHF2, (5-indanyl)oxy, C1, C2, C5, or C6 alkylamino, (R) or (S)-sec-Butylamino, C5 or C6 cycloalkylamino, exo-norbornane amino, (N-methyl, N--isoamylamino), phenylamino, phenylamino with either rnethoxy or fluoro substituents, a C2 sulfone group, a C2 alkyl group, a cyano group, a CONH2 group, or 3,5-dimethylphenyl; or when X = H, R2 = NH2, R5 = CH2OH , R6 = H, R1 is n-hexyloxy; or (II) when X = OH , R1 = H, R5 = CH2OH, R6 = H, R2 is NMe2, N-(2-isopentenyl), piperazinyl, (N-Me, N-benzyl), (N-Me, N-CH2Ph(3-Br)), (N-Me, N--CH2Ph(3-CF3)), or (N-Me, N-(2-rnethoxyethyl)), or OCH2Cyclopentyl; or (III) when X = OH, R5 = CONHR3, R6 = H: R1 is H, R3 is an isopropyl group, and R2 is either NH2 or a methylamino group (NHMe) or an isoamyl group (CH2CH2CHMe2); or R1 is H, R3 is H, and R2 is NH2; or R1 is OMe, R3 is Ph, and R2 is NH2; or R1 is NHCH2CH2CH2CH2CH2Me, R3 is CH2CH2CH2Me, and R2 is NH2; or (IV) when X = OH, R1 = H, R2 = NH2, R5 = CH2NHCOR.4, R6 = H, R4 is n-propyl or NHCH2CH3; or (V) when X = OH, R5 = CH2OH, R6 = H: R1 is NHCyclohexyl when R2 is NMe2; or R1 is OMe when R2 is NHBenzyl; or (VI) when X = OH , R2 = NH2, R5 = CH2OH, R6 = Me, R1 is NHCyclohexyl or NHCyclopentyl.