Category: nitriles-buliding-blocks

Tan, Xiangyu; Gu, Qianqian; Yang, Xingjiang; Yang, Yingying; Hu, Bingwei; Mao, Shuai; Lin, Jun; Jin, Yi published the artcile< Palladium-Catalyzed [2+3] Cycloaddition/Cross-Coupling Reaction: Z/E and Diastereoselective Synthesis of Dendralene-Functionalized Dihydrofurans>, Name: 3-(3-Chlorophenyl)-3-oxopropanenitrile, the main research area is dendralene dihydrofuran preparation diastereoselective; allenyl acetate oxonitrile cycloaddition cross coupling palladium catalyst.

Herein, a Pd-catalyzed [2+3] cycloaddition/cross-coupling reaction of allenyl acetates R(OAc)CH=C=CH2 (R = Ph, 4-phenylphenyl, naphthalen-1-yl, thiophen-3-yl, etc.) for the Z/E selective and diastereoselective synthesis of dendralene-functionalized dihydrofurans I (R1 = Ph, 4-fluorophenyl, cyclopropyl, furan-2-yl, etc.) were described. Remarkably, mechanistic studies show the formation of an epoxide from a carbonyl bond via cycloaddition, which is practically and mechanistically significant for the construction of other bioactive heterocyclic epoxides. This research also revealed the utility and potential of allenic esters as C2 synthons and 1,2-biselectrophiles in cycloaddition reactions.

Organic Letters published new progress about [3+2] Cycloaddition reaction. 21667-62-9 belongs to class nitriles-buliding-blocks, and the molecular formula is C9H6ClNO, Name: 3-(3-Chlorophenyl)-3-oxopropanenitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Luo, Min; Groaz, Elisabetta; De Jonghe, Steven; Schols, Dominique; Herdewijn, Piet published the artcile< Synthesis and anti-HIV activity of guanine modified fluorinated acyclic nucleoside phosphonate derivatives>, SDS of cas: 69205-79-4, the main research area is acyclic nucleoside phosphonate preparation anti HIV activity evaluation; HIV; Mitsunobu reaction, prodrugs; acyclic nucleoside phosphonates; antiviral activity; cytotoxicity.

The preparation of an unprecedented series of nucleobase-modified 3-fluoro-2-(phosphonomethoxy)propyl (FPMP) acyclic nucleosides in both their (R) and (S) enantiomerically pure forms is described. The synthesis focused on a Mitsunobu alkylation reaction to construct the C-N(9) bond between a chiral fluorinated side-chain residue and 6- or 7-modified guanine analogs. Prodrugs of FPMP-7-deazaguanine were also synthesized by derivatization of the corresponding phosphonic acid functionality with (bis)diamyl aspartate amidate groups, leading to moderate activity against human immunodeficiency virus type 1 (HIV-1).

Chemistry & Biodiversity published new progress about Anti-HIV agents. 69205-79-4 belongs to class nitriles-buliding-blocks, and the molecular formula is C7H5N5O, SDS of cas: 69205-79-4.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Sawyer, J. Scott; Beight, Douglas W.; Britt, Karen S.; Anderson, Bryan D.; Campbell, Robert M.; Goodson, Theodore; Herron, David K.; Li, Hong-Yu; McMillen, William T.; Mort, Nicholas; Parsons, Stephen; Smith, Edward C. R.; Wagner, Jill R.; Yan, Lei; Zhang, Faming; Yingling, Jonathan M. published the artcile< Synthesis and activity of new aryl- and heteroaryl-substituted 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole inhibitors of the transforming growth factor-β type I receptor kinase domain>, SDS of cas: 658-99-1, the main research area is dihydropyrrolopyrazole preparation transforming growth factor receptor kinase domain inhibitor; pyrrolopyrazole dihydro aryl heteroaryl preparation; pyrazole heteroaryl preparation structure activity relationship growth factor inhibitor; crystal structure dihydropyrrolopyrazole phenyl quinolinyl bound kinase domain.

We have expanded our previously reported series of pyrazole-based inhibitors of the TGF-β type I receptor kinase domain (TβR-I) to now include new 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole analogs. Limited examination of the SAR of this new series in both enzyme and cell based in vitro assays has revealed selectivity differences with respect to p38 MAP kinase (p38 MAPK) depending on the nature of the warhead’ group on the dihydropyrrolopyrazole ring. As with our original pyrazole series, Ph substituents tended to show greater selectivity against p38 MAPK than those comprised of the quinoline-4-yl moiety. We have also achieved co-crystallization and X-ray anal. of compounds I and II, two potent examples of this new series, with the TβR-I receptor kinase domain.

Bioorganic & Medicinal Chemistry Letters published new progress about Animal cell line (p3TP Lux). 658-99-1 belongs to class nitriles-buliding-blocks, and the molecular formula is C8H5F2N, SDS of cas: 658-99-1.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Hofmann, Fabian; Gaertner, Cornelius; Kretzschmar, Martin; Schneider, Christoph published the artcile< Asymmetric Synthesis of Fused Tetrahydroquinolines via Intramolecular Aza-Diels-Alder Reaction of ortho-Quinone Methide Imines>, Name: 2-Amino-4-methoxybenzonitrile, the main research area is fused tetrahydroquinoline diastereoselective enantioselective; quinone methide aza Diels Alder chiral Bronsted acid catalyst.

In this concept, the chem. of chiral Bronsted acid bound ortho-quinone methide imines e.g., I was combined to generate a range of interesting fused tetrahydroquinolines e.g., II in a diastereo- and enantioselective manner.

Synthesis published new progress about Aza-Diels-Alder reaction (stereoselective). 38487-85-3 belongs to class nitriles-buliding-blocks, and the molecular formula is C8H8N2O, Name: 2-Amino-4-methoxybenzonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Ujjinamatada, Ravi K.; Agasimundin, Yankanagouda S.; Zhang, Peng; Hosmane, Ramachandra S.; Schuessler, Roman; Borowski, Peter; Kalicharran, Kishna; Fattom, Ali published the artcile< A Novel Imidazole Nucleoside Containing a Diamino-dihydro-S-triazine as a Substituent: Inhibitory Activity Against the West Nile Virus NTPase/Helicase>, Recommanded Product: 2,2-Diethoxyacetonitrile, the main research area is condensation ring enlargement guanosine imidazodiazepine guanidine deoxyerythropentofuranosyl ethoxycarbonylimidazolecarbaldehyde; helicase West Nile virus antiviral imidazole nucleoside aminodihydrotriazine synthesis; West Nile virus NTPase antiviral imidazole nucleoside aminodihydrotriazine synthesis.

The attempted synthesis of a ring-expanded guanosine containing the imidazo[4,5-e][1,3]diazepine ring system by condensation of 1-(2′-deoxy-β-D-erythropentofuranosyl)-4-ethoxycarbonylimidazole-5-carbaldehyde with guanidine resulted in the formation of an unexpected product, 1-(2′-deoxy-β-D-erythropentofuranosyl)-5-(2,4-diamino-3,6-dihydro-1,3,5-triazin-6-yl)imidazole-4-carboxamide (I). The structure as well as the pathway of formation of I was corroborated by isolation of the intermediate, followed by its conversion to the product. Nucleoside I showed promising in vitro anti-helicase activity against the West Nile virus NTPase/helicase with an IC50 of 3-10 μg/mL.

Nucleosides, Nucleotides & Nucleic Acids published new progress about Antiviral agents. 6136-93-2 belongs to class nitriles-buliding-blocks, and the molecular formula is C6H11NO2, Recommanded Product: 2,2-Diethoxyacetonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Liu, Jian; Jian, Tianying; Sebhat, Iyassu; Nargund, Ravi published the artcile< Preparation of 2,3-dihydro-1H-spiro[isoquinoline-4,4'-piperidine] via an N-sulfonyl Pictet-Spengler reaction>, Quality Control of 658-99-1, the main research area is spiro isoquinoline piperidine dihydro preparation sulfonyl Pictet Spengler reaction.

A high yielding synthesis of variously substituted 2,3-dihydro-1H-spiro[isoquinoline-4,4′-piperidine] is reported. N-(2-nitrophenyl)sulfonyl was successfully used as both an activating and protecting group for the key Pictet-Spengler reaction.

Tetrahedron Letters published new progress about Nitriles Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 658-99-1 belongs to class nitriles-buliding-blocks, and the molecular formula is C8H5F2N, Quality Control of 658-99-1.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Tan, Xiangyu; Gu, Qianqian; Yang, Xingjiang; Yang, Yingying; Hu, Bingwei; Mao, Shuai; Lin, Jun; Jin, Yi published the artcile< Palladium-Catalyzed [2+3] Cycloaddition/Cross-Coupling Reaction: Z/E and Diastereoselective Synthesis of Dendralene-Functionalized Dihydrofurans>, Reference of 21667-62-9 , the main research area is dendralene dihydrofuran preparation diastereoselective; allenyl acetate oxonitrile cycloaddition cross coupling palladium catalyst.

Herein, a Pd-catalyzed [2+3] cycloaddition/cross-coupling reaction of allenyl acetates R(OAc)CH=C=CH2 (R = Ph, 4-phenylphenyl, naphthalen-1-yl, thiophen-3-yl, etc.) for the Z/E selective and diastereoselective synthesis of dendralene-functionalized dihydrofurans I (R1 = Ph, 4-fluorophenyl, cyclopropyl, furan-2-yl, etc.) were described. Remarkably, mechanistic studies show the formation of an epoxide from a carbonyl bond via cycloaddition, which is practically and mechanistically significant for the construction of other bioactive heterocyclic epoxides. This research also revealed the utility and potential of allenic esters as C2 synthons and 1,2-biselectrophiles in cycloaddition reactions.

Organic Letters published new progress about [3+2] Cycloaddition reaction. 21667-62-9 belongs to class nitriles-buliding-blocks, and the molecular formula is C9H6ClNO, Reference of 21667-62-9 .

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Yang, Yiqing; Tang, Tongke; Li, Xiaolu; Michel, Thomas; Ling, Liqin; Huang, Zhenghui; Mulaka, Maruthi; Wu, Yue; Gao, Hongying; Wang, Liguo; Zhou, Jing; Meunier, Brigitte; Ke, Hangjun; Jiang, Lubin; Rao, Yu published the artcile< Design, synthesis, and biological evaluation of multiple targeting antimalarials>, Application In Synthesis of 103261-68-3, the main research area is quinoline preparation antimalarial; Antimalarial inhibitors; Drug design; Mechanism of action; Membrane proteins; Multiple targeting compounds.

Here, authors performed a structure-based drug design on mitochondrial respiratory chain of Plasmodium falciparum and identified an extremely potent mol., RYL-581, which binds to multiple protein binding sites of P. falciparum simultaneously (allosteric site of type II NADH dehydrogenase, Qo and Qi sites of cytochrome bc1). Antimalarials with such multiple targeting mechanism of action have never been reported before. RYL-581 kills various drug-resistant strains in vitro and shows good solubility as well as in vivo activity. This structure-based strategy for designing RYL-581 from starting compound may be helpful for other medicinal chem. projects in the future, especially for drug discovery on membrane-associated targets.

Acta Pharmaceutica Sinica B published new progress about Antimalarials. 103261-68-3 belongs to class nitriles-buliding-blocks, and the molecular formula is C10H9NO2, Application In Synthesis of 103261-68-3.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Thorarensen, Atli; Wakefield, Brian D.; Romero, Donna L.; Marotti, Keith R.; Sweeney, Michael T.; Zurenko, Gary E.; Rohrer, Douglas C.; Han, Fusen; Bryant, Garold L. published the artcile< Preparation of novel anthranilic acids as antibacterial agents. Extensive evaluation of alternative amide bioisosteres connecting the A- and the B-rings>, Recommanded Product: Methyl 5-cyano-2-methylbenzoate, the main research area is anthranilic acid analog preparation antibacterial.

The identification of an anthranilic acid lead and the optimization resulting in the advanced lead I was recently described. In this report, the preparation of several selected amide bioisosteres connecting the two benzene rings are described. The E-alkene provided a rigid analog with equal potency to the corresponding amide. This indicates that the amide is not a recognition element and rather acts as an appropriate spatial linker of the two important aryl rings. The work here clearly demonstrates that the amide linker can be replaced with several functionalities without significant deterioration in the MIC activity.

Bioorganic & Medicinal Chemistry Letters published new progress about Antibacterial agents. 103261-68-3 belongs to class nitriles-buliding-blocks, and the molecular formula is C10H9NO2, Recommanded Product: Methyl 5-cyano-2-methylbenzoate.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Bowman, W. Russell; Bridge, Colin F.; Cloonan, Martin O.; Leach, David C. published the artcile< Synthesis of heteroarenes via radical cyclisation onto nitriles>, Formula: C6H4N2O, the main research area is camptothecin ring system preparation cascade radical cyclization; indolizinoquinolinone preparation cascade radical cyclization.

A new protocol for the synthesis of tetracyclic nitrogen heteroarenes using cascade radical cyclization has been developed. The key steps involve 5-exo vinyl radical cyclization onto nitriles to yield intermediate iminyl radicals which cyclize onto an arene rings. Rings A-D (I) of the anticancer alkaloids camptothecin, mappicine and nothapodytines A and B have been synthesized using this protocol.

Synlett published new progress about Alkaloids Role: SPN (Synthetic Preparation), PREP (Preparation) (indolizinoquinolinone). 89324-17-4 belongs to class nitriles-buliding-blocks, and the molecular formula is C6H4N2O, Formula: C6H4N2O.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts