- Dehydroxyalkylative halogenation of C(aryl)-C bonds of aryl alcohols
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We herein report Cu mediated side-directed dehydroxyalkylative halogenation of aryl alcohols. C(aryl)-C bonds of aryl alcohols were effectively cleaved, affording the corresponding aryl chlorides, bromides and iodides in excellent yields. Aryl alcohols could serve as both aromatic electrophilic and radical synthetic equivalents during the reaction.
- Liu, Mingyang,Zhang, Zhanrong,Liu, Huizhen,Wu, Tianbin,Han, Buxing
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supporting information
p. 7120 - 7123
(2020/07/14)
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- Synthesis of thioethers, arenes and arylated benzoxazoles by transformation of the C(aryl)-C bond of aryl alcohols
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Transformation of aryl alcohols into high-value functionalized aromatic compounds by selective cleavage and functionalization of the C(aryl)-C(OH) bond is of crucial importance, but very challenging by far. Herein, for the first time, we report a novel and versatile strategy for activation and functionalization of C(aryl)-C(OH) bonds by the cooperation of oxygenation and decarboxylative functionalization. A diverse range of aryl alcohol substrates were employed as arylation reagents via the cleavage of C(aryl)-C(OH) bonds and effectively converted into corresponding thioether, arene, and arylated benzoxazole products in excellent yields, in a Cu based catalytic system using O2 as the oxidant. This study offers a new way for aryl alcohol conversion and potentially offers a new opportunity to produce high-value functionalized aromatics from renewable feedstocks such as lignin which features abundant C(aryl)-C(OH) bonds in its linkages.
- Chen, Bingfeng,Han, Buxing,Liu, Mingyang,Meng, Qinglei,Song, Jinliang,Zhang, Pei,Zhang, Zhanrong
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p. 7634 - 7640
(2020/08/14)
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- Enantiomerically pure 1,4-benzodiazepine-2,5-diones as Hdm2 antagonists
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The 1,4-benzodiazepine-2,5-dione is a suitable template to disrupt the interaction between p53 and Hdm2. The development of an enantioselective synthesis disclosed the stereochemistry of the active enantiomer. An in vitro p53 peptide displacement assay identified active compounds. These activities were confirmed in several cell-based assays including induction of the p53 regulated gene (PIG-3) and caspase activity.
- Marugan, Juan Jose,Leonard, Kristi,Raboisson, Pierre,Gushue, Joan M.,Calvo, Raul,Koblish, Holly K.,Lattanze, Jennifer,Zhao, Shuyuan,Cummings, Maxwell D.,Player, Mark R.,Schubert, Carsten,Maroney, Anna C.,Lu, Tianbao
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p. 3115 - 3120
(2007/10/03)
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- Combinational therapy involving a small molecule inhibitor of the MDM2: P53 interaction
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The present invention is directed to a combinational therapy for treating cancer or other cell proliferative diseases. Such a therapy combines the use of radiation therapy or chemotherapy with the use of a small molecule inhibitor of the MDM2: p53 interaction.
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Page/Page column 56-57
(2008/06/13)
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- Novel 1,4-benzodiazepine-2,5-diones as Hdm2 antagonists with improved cellular activity
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The disruption of the p53-Hdm2 protein-protein interaction induces cell growth arrest and apoptosis. We have identified the 1,4-benzodiazepine-2,5-dione scaffold as a suitable template for inhibiting this interaction by binding to the Hdm2 protein. Several compounds have been made with improved potency, solubility, and cell-based activities.
- Leonard, Kristi,Marugan, Juan Jose,Raboisson, Pierre,Calvo, Raul,Gushue, Joan M.,Koblish, Holly K.,Lattanze, Jennifer,Zhao, Shuyuan,Cummings, Maxwell D.,Player, Mark R.,Maroney, Anna C.,Lu, Tianbao
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p. 3463 - 3468
(2007/10/03)
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- Substituted 1,4-diazepines and uses thereof
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The present invention is directed to novel 1,4-diazepines, pharmaceutical compositions thereof, and the use thereof as inhibitors of HDM2-p53 interactions. Compounds have Formula I: or a solvate, hydrate or pharmaceutically acceptable salt thereof; wherein: R1, R2, R9, R10, Ra, Rd and M are defined herein; X is a bivalent radical of: an alkane, a cycloalkane, an optionally-substituted arene, an optionally-substituted heteroarene, an optionally-substituted arylalkane or an optionally-substituted heteroarylalkane; and R3 is —CO2Rd, —CO2M, —OH, —NHRd, —SO2Rd, —NHCONHRd, optionally-substituted amidino or optionally-substituted guanidino; or R3—X— is hydrogen or an electron pair; R4 is oxygen or —NR9R10; R5 is cycloalkyl, aryl, heteroaryl, cycloalkylalkyl, aralkyl, heteroarylalkyl, or a saturated or partially unsaturated heterocycle, each of which is optionally substituted; and R6, R7 and R8 are independently hydrogen, alkyl, cycloalkyl, aryl, heteroaryl, a saturated or partially unsaturated heterocycle, cycloalkylalkyl, aralkyl or heteroarylalkyl, each of which is optionally substituted; or R6 and R7, together with the carbon atom to which they are attached form a 3- to 7-membered carbocyclic ring optionally substituted 1 to 3 times with Ra.
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