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Volumn 17, Issue 15, 2007, Pages 4290-4296

Arylpropanolamines: Selective β3 agonists arising from strategies to mitigate phase I metabolic transformations

Author keywords

3 Agonists; Arylpropanolamine; Drug metabolism; Metabolic oxidative N dealkylation

Indexed keywords

4 HYDROXY 3 METHYLSULFONANILIDOETHANOLAMINE DERIVATIVE; ARYPROPANOLAMINE DERIVATIVE; BETA 3 AGONIST; BETA ADRENERGIC RECEPTOR; N 4 HYDROXY 3 METHYLSULFONANILIDOETHANOLAMINE DERIVATIVE; PROPANOLAMINE DERIVATIVE; UNCLASSIFIED DRUG; BETA 3 ADRENERGIC RECEPTOR; BETA ADRENERGIC RECEPTOR STIMULATING AGENT;

EID: 34347402001     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2007.05.030     Document Type: Article
Times cited : (4)

References (32)
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    • note
    • 100 for mice was 57 μg/kg of 2 administered iv; iv doses of 0.5-5.7 μg/kg produced progressively more pronounced piloerection; 0.05 μg/kg was a no effect dose. This dose dependent response suggested that piloerection following iv administration of 10 mg/kg of 1 during the murine safety screen was indicative of 0.01-0.1% of the dose being converted to 2. A few compounds, such as 1f, were lethal at 10 mg/kg but not at 1 mg/kg implying that metabolic conversion to 2 was ∼0.1-1%.
  • 10
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    • note
    • Typically, a 100 μM solution of compounds of structure 1 was incubated for 3 h in pH 7.4 phosphate buffer (0.1 M) containing African green monkey hepatic microsomes (3 mg/mL protein) and 3 mM NADPH whereupon the protein was precipitated by addition of 2 volumes MeCN prior to determination of the conversion to 2 by LC/MS. Since control studies entailing incubation of compounds of structure 1 as described above in the absence of NADPH generated minuscule amounts of 2, solvolytic release of 2 due to chemical instability of 1 after protonation was of minimal importance.
  • 11
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    • note
    • Subsequently during clinical studies with BMS-196085 (1c), BMS-194449 (1b), and BMS-201620 (1j) dose dependent incidences of sweaty palms, flushing, and piloerection, all classic manifestations of an α adrenergic agonist, as well as detection of trace levels of 2 validated these concerns regarding metabolic liberation of 2.
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    • note
    • 15 IA is given as a percentage of the maximal stimulation with isoproterenol.
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    • note
    • Spectral data were fully consistent with structures.
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    • note
    • 1/2 was ∼40 min to presumably generate quinones.
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    • 22.
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    • note
    • Absolute stereochemistry of 15f assigned by X-ray crystallography.
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    • note
    • 2 IA was determined by measuring relaxation of guinea pig trachea rings submaximally contracted with carbacol relative to that induced by isoproterenol.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.