364607-53-4Relevant academic research and scientific papers
A Rh(II)- or Ag(I)-Catalyzed Formal C-O Bond Insertion of Cyclic Hemiaminal with Aryl Diazoacetate
Xu, Cong,Liu, Xiangrong,Xie, Xiongda,Deng, Lin,Xu, Xinfang,Chan, Albert S. C.,Hu, Wenhao
supporting information, p. 1957 - 1962 (2021/09/22)
A mild and facile synthetic method via convergent assembly of two reactive intermediates generated in situ has been developed. This method provides an efficient way to construct six- and sevenmembered N-heterocycles containing a biaryl linkage. This react
Solvent-free, uncatalyzed asymmetric "ene" reactions of: N-Tert-butylsulfinyl-3,3,3-Trifluoroacetaldimines: A general approach to enantiomerically pure α-(trifluoromethyl)tryptamines
Mazzeo, Giuseppe,Longhi, Giovanna,Abbate, Sergio,Palomba, Martina,Bagnoli, Luana,Marini, Francesca,Santi, Claudio,Han, Jianlin,Soloshonok, Vadim A.,Di Crescenzo, Emilio,Ruzziconi, Renzo
, p. 3930 - 3937 (2017/07/11)
A novel approach to regioselectively substituted and stereoselectively α-Trifluoromethylated tryptamines is reported based on the ene reaction of Boc-protected 3-methyleneindolines with optically pure (R)-or (S)-Tert-butanesulfinyltrifluoroacetaldimine. B
Palladium-Catalyzed Carbamate-Directed Regioselective Halogenation: A Route to Halogenated Anilines
Moghaddam, Firouz Matloubi,Tavakoli, Ghazal,Saeednia, Borna,Langer, Peter,Jafari, Behzad
, p. 3868 - 3876 (2016/05/24)
This study describes an efficient method for ortho-selective halogenation of N-arylcarbamates under mild conditions for the first time. Although being weakly coordinating, N-arylcarbamates act very well as a removable directing group for activation of C-H bonds. The developed procedure results in extremely valuable halogenated N-arylcarbmates that can further be hydrolyzed to halogenated anilines. The obtained reaction conditions showed broad scope and wide functional group tolerance. All the products were formed in good yields with extremely high selectivity.
Design, synthesis and structure–activity relationships of novel phenylalanine-based amino acids as kainate receptors ligands
Szymańska, Ewa,Cha?upnik, Paulina,Szczepańska, Katarzyna,Cu?ado Moral, Ana Maria,Pickering, Darryl S.,Nielsen, Birgitte,Johansen, Tommy N.,Kie?-Kononowicz, Katarzyna
supporting information, p. 5568 - 5572 (2016/11/09)
A new series of carboxyaryl-substituted phenylalanines was designed, synthesized and pharmacologically characterized in vitro at native rat ionotropic glutamate receptors as well as at cloned homomeric kainate receptors GluK1–GluK3. Among them, six compounds bound to GluK1 receptor subtypes with reasonable affinity (Kivalues in the range of 4.9–7.5?μM). A structure–activity relationship (SAR) for the obtained series, focused mainly on the pharmacological effect of structural modifications in the 4- and 5-position of the phenylalanine ring, was established. To illustrate the results, molecular docking of the synthesized series to the X-ray structure of GluK1 ligand binding core was performed. The influence of individual substituents at the phenylalanine ring for both the affinity and selectivity at AMPA, GluK1 and GluK3 receptors was analyzed, giving directions for future studies.
Homogenous suspension of immunopotentiating compounds and uses thereof
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Page/Page column 57, (2016/09/12)
The present invention generally relates to homogeneous suspensions of small molecule immune potentiators (SMIPs) that are capable of stimulating or modulating an immune response in a subject in need thereof. The homogeneous suspensions may be used in combinations with various antigens or adjuvants for vaccine therapies.
Nitrones as trapping reagents of α,β-unsaturated carbene intermediates - [1,2]oxazino[5,4-b]indoles by a platinum-catalyzed intermolecular [3+3] cycloaddition
Yang, Weibo,Wang, Tao,Yu, Yang,Shi, Shuai,Zhang, Tuo,Hashmi, A. Stephen K.
supporting information, p. 1523 - 1528 (2013/06/27)
Some readily available Boc-protected 2-(3-methoxy-1-propynyl)anilines and nitrones in platinum-catalyzed reactions deliver [1,2]oxazino[5,4-b]indoles. Twelve examples with yields of 41-95% are reported. Different substituents like nitro, trifluoromethyl,
Palladium-catalyzed annulation of haloanilines and halobenzamides using norbornadiene as an acetylene synthon: A route to functionalized indolines, isoquinolinones, and indoles
Thansandote, Praew,Hulcoop, David G.,Langer, Michael,Lautens, Mark
supporting information; experimental part, p. 1673 - 1678 (2009/07/17)
A general procedure for the palladium-catalyzed annulation of substituted haloanilines with norbornadiene gives functionalized indolines in 51-98% yield. These indolines can be rapidly converted to benzenoid- substituted indoles and tricyclic indolines. Extension to the use of substituted halobenzamides gives functionalized isoquinolinones in up to 86% yield.
COMPOUNDS AND COMPOSITIONS AS TLR ACTIVITY MODULATORS
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Page/Page column 163, (2009/10/22)
The invention provides a novel class of compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with Toll-Like Receptors, including TLR7 and TLR8. In one aspect, the compounds are useful as adjuvants for enhancing the effectiveness of a vaccine (formula I) wherein: X3 is N; X4 is N Or CR3; X5 is -CR4=CR5.
Rhodium-catalyzed tandem conjugate addition-Mannich cyclization reaction: Straightforward access to fully substituted tetrahydroquinolines
So, Won Youn,Song, Ju-Hyun,Jung, Dai-Il
, p. 5658 - 5661 (2008/12/21)
(Chemical Equation Presented) A new Rh(I)-catalyzed tandem conjugate addition-Mannich cyclization reaction of imine-substituted electron-deficient alkenes with arylboronic acids has been developed to afford 2,3,4-trisubstituted 1,2,3,4-tetrahydroquinolines. This is the first example involving imine group as a secondary electrophile in Rh(I)-catalyzed tandem reactions.
Indole synthesis by controlled carbolithiation of o-aminostyrenes
Kessler, Albane,Coleman, Claire M.,Charoenying, Patchanee,O'Shea, Donal F.
, p. 7836 - 7846 (2007/10/03)
An effective synthesis of the functionalized indole ring system has been developed from substituted o-aminostyrene starting material. Our methodology involves a novel cascade reaction sequence of alkyllithium addition to the styrene double bond and subsequent trapping of the intermediate organolithium with a suitable electrophile, followed by an in situ ring closure and dehydration to generate the indole ring. This new reaction sequence allows for the introduction of molecular diversity at all positions on the indole scaffold. The procedure was shown to be successful with a range of both C and N substituents on the o-aminostyrenes. The reaction sequence was tolerant to the reactivity range of alkyllithiums such as tert-, sec-, and n-butyllithium. The electrophiles used were DMF, which generated indole products with C-2 unsubstituted, and nitriles, which incorporated the nitrile substituent at C-2. The o-aminostyrene starting materials were generated by a Pd-catalyzed cross-coupling reaction of a vinyl boronic acid equivalent with the readily available substituted o-bromoanilines.
