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Volumn 22, Issue 8, 2012, Pages 2906-2911

Design and synthesis of dihydrobenzofuran amides as orally bioavailable, centrally active γ-secretase modulators

Author keywords

Secretase modulators; Alzheimer's disease

Indexed keywords

AMIDE; DIHYDROBENZOFURAN DERIVATIVE; GAMMA SECRETASE;

EID: 84862805277     PISSN: 0960894X     EISSN: 14643405     Source Type: Journal    
DOI: 10.1016/j.bmcl.2012.02.059     Document Type: Article
Times cited : (29)

References (46)
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    • Log D at pH 7.4 calculated using ACD version 9.03
    • Log D at pH 7.4 calculated using ACD version 9.03.
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    • An analysis of a set of CNS drugs (N = 119) showed that 74% have a CNS MPO score ≥4 on a scale of 0-6: see: T.T. Wager, X. Hou, P.R. Verhoest, and A. Villalobos ACS Chem. Neurosci. 1 2010 435
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    • A hydrogen bond acceptor in the form of an amide, lactam, or various heterocycles in this region of the molecule is present in the majority of non-NSAID GSMs throughout the patent literature (see Ref. 6a,b)
    • A hydrogen bond acceptor in the form of an amide, lactam, or various heterocycles in this region of the molecule is present in the majority of non-NSAID GSMs throughout the patent literature (see Ref. 6a,b).
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    • A compound with a MDR efflux ratio (MDR Er) less than 2.5 is considered to have minimal P-gp efflux liability.
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    • TorreyPines Therapeutics, Inc.WO08137102, 2008. The compound from this patent application that inspired the synthesis of 33 is shown below
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    • For the original report concerning the dihydrobenzofuranol synthesis see
    • For the original report concerning the dihydrobenzofuranol synthesis see: B. Holt, and P.A. Lowe Tetrahedron Lett. 7 1966 683
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    • Single enantiomers were obtained by chiral separation of amines 30 or following the final amide coupling
    • Single enantiomers were obtained by chiral separation of amines 30 or following the final amide coupling.
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    • Male Hartley guinea pigs, weighing 200-250 g were administered vehicle or GSM 35 or 43 100 mg/kg orally. Brain, CSF and plasma were sampled at 4 h post-dose. Brains were homogenized in 0.4%DEA/50 mM NaCl, incubated overnight at 4 °C, then centrifuged at 135,000g for 1 h. Supernatant was collected for analysis. Plasma was incubated overnight with 5 M GuHCl. The DELFIA method was used to measure total Aβ1-x, Aβx-42, Aβx-40 and Aβ1-38 in brain supernatant, CSF and Plasma. CSF was diluted directly in assay buffer. Brain extracts and GuHCl-plasma were run over solid-phase extraction to remove nonspecific signal and concentrate
    • Male Hartley guinea pigs, weighing 200-250 g were administered vehicle or GSM 35 or 43 100 mg/kg orally. Brain, CSF and plasma were sampled at 4 h post-dose. Brains were homogenized in 0.4%DEA/50 mM NaCl, incubated overnight at 4 °C, then centrifuged at 135,000g for 1 h. Supernatant was collected for analysis. Plasma was incubated overnight with 5 M GuHCl. The DELFIA method was used to measure total Aβ1-x, Aβx-42, Aβx-40 and Aβ1-38 in brain supernatant, CSF and Plasma. CSF was diluted directly in assay buffer. Brain extracts and GuHCl-plasma were run over solid-phase extraction to remove nonspecific signal and concentrate.
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    • u = 0.0097
    • u = 0.0097.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.