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Lewis Acid-Catalyzed 1,3-Dipolar Cycloaddition of Bicyclobutanes with Isatogens: Access to Tetracyclic 2‑Oxa-3-azabicyclo[3.1.1]heptanes [PDF]

open access: yesJACS Au
The ’escape from flatland’ concept has gained significant traction in modern drug discovery, emphasizing the importance of three-dimensional molecular architectures, which serve as saturated bioisosteres of benzenoids. Bicyclo[1.1.0]butanes (BCBs), known
Shiksha Deswal   +3 more
doaj   +3 more sources

Organophotoredox-Catalyzed Stereoselective Synthesis of Bicyclo[3.2.0]heptanes via [2+2] Photocycloaddition [PDF]

open access: yesMolecules
The stereoselective synthesis of bicyclo[3.2.0]heptanes via an anion radical [2+2] photocycloaddition of aryl bis-enone derivatives was investigated.
Sérgio Rossi   +2 more
exaly   +4 more sources

Photochemical Intermolecular [3σ + 2σ]-Cycloaddition for the Construction of Aminobicyclo[3.1.1]heptanes. [PDF]

open access: yesJ Am Chem Soc, 2022
The development of synthetic strategies for the preparation of bioisosteric compounds is a demanding undertaking in medicinal chemistry. Numerous strategies have been developed for the synthesis of bicyclo[1.1.1]pentanes (BCPs), bridge-substituted BCPs ...
Zheng Y   +6 more
europepmc   +2 more sources

The attenuation of doxorubicin-induced testicular toxicity with improved testicular histoarchitecture of mice by the bioactive compounds in Solanum anomalum leaves: Experimental and computational studies [PDF]

open access: yesToxicology Reports
Doxorubicin, as an antibiotic causes toxicity in human tissues through the generation of oxidant species; however, Solanum anomalum (Solanaceae) is ethnopharmacologically and scientifically reported to possess antidotal activities.
Edet Effiong Asanga   +7 more
doaj   +2 more sources

Synthesis of Heterocycle-Substituted Bicyclo[3.1.1]heptanes and Aza-bicyclo[3.1.1]heptanes via Photocatalytic Minisci Reaction. [PDF]

open access: yesOrg Lett
A route toward heterocycle-functionalized bicyclo[3.1.1]heptanes (BCHeps) and aza-bicyclo[3.1.1]heptanes (aza-BCHeps) has been developed, using mild, photocatalytic Minisci-like conditions to introduce various heterocycles at the bridgehead position from
Revie RI   +4 more
europepmc   +2 more sources

Enantioselective dearomative formal (3+3) cycloadditions of bicyclobutanes with aromatic azomethine imines: access to fused 2,3-diazabicyclo[3.1.1]heptanes. [PDF]

open access: yesChem Sci
Although cycloadditions of bicyclobutanes (BCBs) have emerged as a reliable approach for producing bicyclo[n.1.1]alkanes such as azabicyclo[3.1.1]heptanes (aza-BCHeps), serving as saturated bioisosteres of arenes, the catalytic asymmetric variant remains
Yang XC, Wu F, Wu WB, Zhang X, Feng JJ.
europepmc   +2 more sources

Solvent effect on the morphology of the bee: structure observed by atomic force microscopy on bitumen sample [PDF]

open access: yesMaterials Research, 2014
The objective of this work was to characterize the asphaltic cement penetration grade 30/45 (CAP 30/45) based on the morphology of nanostructures called "bee" structure observed and its modification when the binder was diluted in heptanes or toluene. The
Bianca Pizzorno Backx   +3 more
doaj   +1 more source

Photocatalyzed [2σ + 2σ] and [2σ + 2π] Cycloadditions for the Synthesis of Bicyclo[3.1.1]heptanes and 5- or 6-Membered Carbocycles.

open access: yesJournal of the American Chemical Society, 2023
We report the use of photocatalysis for the homolytic ring-opening of carbonyl cyclopropanes. In contrast to previous studies, our approach does not require a metal cocatalyst or a strong reductant. The carbonyl cyclopropanes can be employed for both [2σ
Tin V T Nguyen   +3 more
semanticscholar   +1 more source

General Synthesis of 3-Azabicyclo[3.1.1]heptanes and Evaluation of Their Properties as Saturated Bioisosteres.

open access: yesAngewandte Chemie, 2023
A general approach to 3-azabicyclo[3.1.1]heptanes by reduction of spirocyclic oxetanyl nitriles was developed. The mechanism, scope, and scalability of this transformation were studied.
Dmitry Dibchak   +9 more
semanticscholar   +1 more source

Über 1-Aza-bicyclo-heptane

open access: yesCHIMIA, 1976
A simple way to synthesize 7-phenyl-1-aza-bicyclo[2,2,1]heptanes out of 4-benzoyl-pyridines is described. The corresponding 3- benzoyl-pyridines did not yield the expected 7-phenyl-1-azabicyclo [3,1,1] heptanes.
A. Marxer
doaj   +1 more source

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