35633-35-3Relevant academic research and scientific papers
Substituted triazole compound, pharmaceutical composition containing substituted triazole compound, preparation method and application of substituted triazole compound
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Paragraph 0218; 0219; 0220-0221, (2020/01/25)
The present invention relates to a substituted triazole compound represented by formula (I), a pharmaceutical compositions comprising the substituted triazole compound, a preparation method of the substituted triazole compound, and applications of the sub
Pyridine compound, its preparation and use (by machine translation)
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Paragraph 0156-0159, (2019/07/16)
The invention relates to pyridine compounds or their pharmaceutically acceptable salts, stereoisomers, polymorphs, solvates, N - oxide, an isotope-labeled compound, metabolite or prodrug. The invention also relates to a pharmaceutical composition comprisi
Iridium-Catalyzed C(sp3)?H Addition of Methyl Ethers across Intramolecular Carbon–Carbon Double Bonds Giving 2,3-Dihydrobenzofurans
Ohmura, Toshimichi,Kusaka, Satoshi,Torigoe, Takeru,Suginome, Michinori
supporting information, p. 4448 - 4453 (2019/09/16)
Intramolecular addition of an O-methyl C(sp3)?H bond across a carbon-carbon double bond occurs in the iridium-catalyzed reaction of methyl 2-(propen-2-yl)phenyl ethers. The Ir/(S)-DTBM-SEGPHOS catalyst promotes the reaction efficiently in toluene at 110–135 °C to afford 3,3-dimethyl-2,3-dihydrobenzofurans. Enantioselective C(sp3)?H addition is achieved in the reaction of methyl 2-(1-siloxyethenyl)phenyl ethers, affording enantioenriched 3-hydroxy-2,3-dihydrobenzofuran derivatives with up to 96% ee. (Figure presented.).
Diastereoselective hydrogenation of α,β-unsaturated but-2-enamides to access the chiral 3-(p-tolyl) butanoic acids
Jiménez, Jacqueline,López, Mildred,Carranza, Vladimir,Mendoza, Angel,Varela, Jenaro,Sansinenea, Estibaliz,Ortiz, Aurelio
, p. 235 - 239 (2016/12/28)
An alternative methodology for the synthesis of chiral 3-(p-tolyl) butanoic acids is presented. This was accomplished through the diastereoselective hydrogenation reaction of different chiral N-3-(p-tolyl) but-2-enamides, using Pd/C in EtOH, to produce the corresponding chiral N-3-(p-tolyl) butanamides with high chemical yields and moderate diastereomeric ratios. Removal of the chiral auxiliary from N-3-(p-tolyl) butanamides gave the respective enantiomerically pure acids.
Metal Sulfonate Polymers as Catalysts for the Heterogeneous Acylation of Aromatic Derivatives
Morizur, Vincent,Hector, Daphné,Olivero, Sandra,Desmurs, Jean Roger,Du?ach, Elisabet
supporting information, p. 3126 - 3129 (2016/07/12)
A series of metal sulfonate salts attached to a poly(ether ether ketone) (PEEK) polymer were prepared by ultrasonic activation and then examined as heterogeneous catalysts in the Friedel–Crafts acylation of aromatic derivatives.
Total Synthesis of (-)-Bacchopetiolone via an Asymmetric Hydroxylative Phenol Dearomatization/[4+2]-Dimerization Cascade Promoted by a Novel Salen-Type Chiral Iodane
Coffinier, Romain,Assal, Mourad El,Peixoto, Philippe A.,Bosset, Cyril,Miqueu, Karinne,Sotiropoulos, Jean-Marc,Pouységu, Laurent,Quideau, Stéphane
supporting information, p. 1120 - 1123 (2016/03/15)
The first total and biomimetic synthesis of the natural bis(sesquiterpene) (-)-bacchopetiolone (revised structure) was completed through a highly diastereoselective hydroxylative phenol dearomatization/[4+2]-dimerization cascade conversion of (+)-curcuphe
Design, Conformation, and Crystallography of 2-Naphthyl Phenyl Ethers as Potent Anti-HIV Agents
Lee, Won-Gil,Chan, Albert H.,Spasov, Krasimir A.,Anderson, Karen S.,Jorgensen, William L.
supporting information, p. 1156 - 1160 (2016/12/16)
Catechol diethers that incorporate a 7-cyano-2-naphthyl substituent are reported as non-nucleoside inhibitors of HIV-1 reverse transcriptase (NNRTIs). Many of the compounds have 1-10 nM potencies toward wild-type HIV-1. An interesting conformational effect allows two unique conformers for the naphthyl group in complexes with HIV-RT. X-ray crystal structures for 4a and 4f illustrate the alternatives.
Stereocontrolled synthesis of adjacent acyclic quaternary-tertiary motifs: Application to a concise total synthesis of (-)-filiformin
Blair, Daniel J.,Fletcher, Catherine J.,Wheelhouse, Katherine M. P.,Aggarwal, Varinder K.
supporting information, p. 5552 - 5555 (2014/06/10)
Lithiation/borylation methodology has been developed for the synthesis of acyclic quaternary-tertiary motifs with full control of relative and absolute stereochemistry, thus leading to all four possible isomers of a stereodiad. A novel intramolecular Zweifel-type olefination enabled acyclic stereocontrol to be transformed into cyclic stereocontrol. These key steps have been applied to the shortest enantioselective synthesis of (-)-filiformin to date (9 steps) with full stereocontrol. True to (fili)form: Lithiation/borylation methodology has been developed for the synthesis of acyclic quaternary-tertiary motifs with full control of relative and absolute stereochemistry, thus leading to all four possible isomers of a stereodiad. A novel intramolecular Zweifel-type olefination enabled acyclic stereocontrol to be transformed into cyclic stereocontrol. These key steps were applied to the enantioselective synthesis of (-)-filiformin.
The total synthesis of (-)-aplysin via a lithiation-borylation- propenylation sequence
Fletcher, Catherine J.,Blair, Daniel J.,Wheelhouse, Katherine M.P.,Aggarwal, Varinder K.
experimental part, p. 7598 - 7604 (2012/09/21)
A concise, highly enantioselective synthesis of sesquiterpene natural products (-)-debromoaplysin and (-)-aplysin has been completed. The key steps included lithiation-borylation of a secondary benzylic carbamate to give a tertiary boronic ester followed by propenylation which installed the quaternary stereocenter with complete enantioselectivity. Subsequent RCM followed by deprotection and in situ cyclization led to debromoaplysin with good diastereoselectivity from which the target compound was prepared in just eight overall steps.
Application of the lithiation-borylation reaction to the rapid and enantioselective synthesis of the bisabolane family of sesquiterpenes
Aggarwal, Varinder K.,Ball, Liam T.,Carobene, Simon,Connelly, Rickki L.,Hesse, Matthew J.,Partridge, Benjamin M.,Roth, Philippe,Thomas, Stephen P.,Webster, Matthew P.
supporting information; experimental part, p. 9230 - 9232 (2012/09/10)
The expedient enantioselective synthesis of 5 bisabolane sesquiterpenes has been achieved using a common, one-pot lithiation-borylation reaction of secondary benzylic carbamates and either protodeboronation or oxidation to give the natural products in few
