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Volumn 21, Issue 2, 2011, Pages 773-776

Quinazolinones as γ-secretase modulators

Author keywords

A 42 lowering; Alzheimer; APP; Gamma Secretase; Modulator

Indexed keywords

GAMMA SECRETASE INHIBITOR; QUINAZOLINONE DERIVATIVE;

EID: 78651252685     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2010.11.111     Document Type: Article
Times cited : (22)

References (46)
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    • C-99 is the C-terminal fragment of the amyloid precursor protein (APP) produced by β-secretase mediated proteolysis of APP.
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    • All GSMs lower Aβ42 selectively over Aβ40, however, some raise the levels of Aβ38 and/or Aβ37. The consequence of this difference is unknown
    • All GSMs lower Aβ42 selectively over Aβ40, however, some raise the levels of Aβ38 and/or Aβ37. The consequence of this difference is unknown.
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    • 50s >10 μM
    • 50s >10 μM.
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    • We have also investigated several other heterocyclic amide replacements, such as oxazoles, oxadiazoles, thiazoles and thiadiazoles. While all of them behaved as GSMs, their binding to the hERG channel was generally equal or greater than their cellular potency as GSMs
    • We have also investigated several other heterocyclic amide replacements, such as oxazoles, oxadiazoles, thiazoles and thiadiazoles. While all of them behaved as GSMs, their binding to the hERG channel was generally equal or greater than their cellular potency as GSMs.
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    • Careful work-up and purification was necessary to remove the unwanted regio-isomer. See Ref. 18 for detailed synthetic procedures
    • Careful work-up and purification was necessary to remove the unwanted regio-isomer. See Ref. 18 for detailed synthetic procedures.
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    • Other analogues, including amino quinazolines used in Table 2, were prepared in a similar manner. For detailed synthetic procedures, see Ref. 18
    • Other analogues, including amino quinazolines used in Table 2, were prepared in a similar manner. For detailed synthetic procedures, see Ref. 18
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    • 50 measurements for inhibition of Aβ40 and Aβ42 production were determined using electrochemiluminescent detection of these peptides secreted by SH-SY5Y cells stably overexpressing the APP C-terminal fragment SPA4CT. Consistent with the profiles of γ-secretase modulators, total Aβ peptide levels were constant. The GSM profile of selected compounds was confirmed by mass spectrometry (SELDI), which confirmed the appearance of shorter (Aβ37) fragments while Aβ42 formation was suppressed. (a) Best, J. D.; Jay, M. T.; Otu, F.; Ma, J.; Nadin, A.; Ellis, S.; Lewis, H. D.; Pattison, C.; Reilly, M.; Harrison, T.; Shearman, M. S.; Williamson, T. L.; Atack, J. R. J. Pharmacol. Exp. Ther. 2005, 313, 902
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    • Best, J.D.1    Jay, M.T.2    Otu, F.3    Ma, J.4    Nadin, A.5    Ellis, S.6    Lewis, H.D.7    Pattison, C.8    Reilly, M.9    Harrison, T.10    Shearman, M.S.11    Williamson, T.L.12    Atack, J.R.13
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    • Kr) currents with PatchXpress, compound 18 could not be fully evaluated due to solubility limitations; at the maximum soluble concentration (10 μM) a 39% (N = 4) mean blockade was observed
    • Kr) currents with PatchXpress, compound 18 could not be fully evaluated due to solubility limitations; at the maximum soluble concentration (10 μM) a 39% (N = 4) mean blockade was observed.
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    • Compound 31 was prepared in a one-pot procedure from the corresponding fused pyrimidone 24 according to: Z.-K. Wan, E. Binnun, D.P. Wilson, and J. Lee Org. Lett. 7 2005 5877
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    • Solubility of compounds 15-24 was not quantifiable at pH 7 in phosphate buffered saline (PBS) buffer. Compounds 25 and 27 had 6 and 33 μM solubility, respectively, in PBS
    • Solubility of compounds 15-24 was not quantifiable at pH 7 in phosphate buffered saline (PBS) buffer. Compounds 25 and 27 had 6 and 33 μM solubility, respectively, in PBS.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.