195628-18-3Relevant articles and documents
Efficient synthesis of exo-1-azabicyclo[2.2.1]heptan-3-ol
Barrett, Stephen D.,Jaen, Juan C.,Caprathe, Bradley W.,Thomas, Anthony J.,Tecle, Haile
, p. 330 - 335 (1997)
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Design, Synthesis, and Monoamine Oxidase Inhibitory Activity of (+)-Cinchonaminone and Its Simplified Derivatives
Sato, Yuta,Oyobe, Naoko,Ogawa, Takao,Suzuki, Sayo,Aoyama, Hiroshi,Nakamura, Tomonori,Fujioka, Hiromichi,Shuto, Satoshi,Arisawa, Mitsuhiro
, p. 1464 - 1469 (2021/09/13)
The absolute structure of an indole alkaloid (+)-cinchonaminone by total synthesis of both (+)-cinchonaminone and its enantiomer was determined. The main focus of the study was the enantioselective synthesis of both enantiomers of a chiral cis-3,4-disubstituted piperidine. We also evaluated monoamine oxidase (MAO) inhibitory activities of these enantiomers. Furthermore, its structurally simplified derivatives were synthesized that did not have any chiral center. Two of these derivatives showed stronger MAO inhibitory activities than that of (+)-cinchonaminone.
COMPOUNDS ACTIVE TOWARDS NUCLEAR RECEPTORS
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Page/Page column 126-128, (2021/10/11)
Disclosed are compounds active towards nuclear receptors, pharmaceutical compositions containing the compounds and use of the compounds in therapy.
Radiolabelling of 1,4-disubstituted 3-[18F]fluoropiperidines and its application to new radiotracers for NR2B NMDA receptor visualization
Koudih, Radouane,Gilbert, Gwéna?lle,Dhilly, Martine,Abbas, Ahmed,Barré, Louisa,Debruyne, Danièle,Sobrio, Franck
, p. 8493 - 8500 (2013/01/15)
In order to develop a novel and useful building block for the development of radiotracers for positron emission tomography (PET), we studied the radiolabelling of 1,4-disubstituted 3-[18F]fluoropiperidines. Indeed, 3-fluoropiperidine became a useful building block in medicinal chemistry for the pharmacomodulation of piperidine-containing compounds. The radiofluorination was studied on substituted piperidines with electron-donating and electron-withdrawing N-substituents. In the instance of electron-donating N-substituents such as benzyl or butyl, configuration retention and satisfactory fluoride-18 incorporation yields up to 80% were observed. In the case of electron-withdrawing N-substituents leading to carbamate or amide functions, the incorporation yields depend on the 4-susbtitutent (2 to 63%). The radiolabelling of this building block was applied to the automated radiosynthesis of NR2B NMDA receptor antagonists and effected by a commercially available radiochemistry module. The in vivo evaluation of three radiotracers demonstrated minimal brain uptakes incompatible with the imaging of NR2B NMDA receptors in the living brain. Nevertheless, moderate radiometabolism was observed and, in particular, no radiodefluorination was observed which demonstrates the stability of the 3-position of the fluorine-18 atom. In conclusion, the 1,4-disubstituted 3-[18F]fluoropiperidine moiety could be of value in the development of other radiotracers for PET even if the evaluation of the NR2B NMDA receptor antagonists failed to demonstrate satisfactory properties for PET imaging of this receptor.
