- The comparison of protecting methods to the amino group in 2-Aminomethylphenylacetic acid
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2-Aminomethylphenylacetic acid is an important intermediate of ceforanide, and this article compared two different protecting agents for protecting the amino group in 2-aminomethylphenylacetic acid by BOC (Di-tert butyl dicarbonate) or acetacetic ester, a
- Zhao, Yougui,Wang, Ronggeng,Liu, Mei
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p. 1637 - 1640
(2014/05/06)
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- Arylacetamide κ opioid receptor agonists with reduced cytochrome P450 2D6 inhibitory activity
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Some κ opioid receptor agonists of the arylacetamide class, for example, ICI 199441 (1), were found to strongly inhibit the activity of cytochrome P450 2D6 (CYP2D6) (1: CYP2D6 IC50 = 26 nM). Certain analogs bearing a substituted sulfonylamino group, for example, 13, were discovered to have significantly reduced CYP2D6 inhibitory activity (13: CYP2D6 IC50 > 10 μM) while displaying high affinity toward the cloned human κ opioid receptor, good κ/δ and κ/μ selectivity, and potent in vitro and in vivo agonist activity.
- Le Bourdonnec, Bertrand,Ajello, Christopher W.,Seida, Pamela R.,Susnow, Roberta G.,Cassel, Joel A.,Belanger, Serge,Stabley, Gabriel J.,DeHaven, Robert N.,DeHaven-Hudkins, Diane L.,Dolle, Roland E.
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p. 2647 - 2652
(2007/10/03)
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- Sulfonylamino phenylacetamide derivatives and methods of their use
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Sulfonylamino phenylacetamide derivatives of the general formula are disclosed. Pharmaceutical compositions containing the compounds and methods for their use are also disclosed. In certain embodiments, the compounds of the invention that, preferably: (1) bind with high affinity to κ opioid receptors; (2) display good opioid receptor selectivity of κ versus μ and κ versus δ; and (3) do not substantially inhibit cytochrome P450 enzymatic activity, in particular CYP2D6, CYP2C9 and CYP3A4.
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- PREPARATION OF TETRAHYDROISOQUINOLINES FROM N-(TERT-BUTOXYCARBONYL)-2-METHYLBENZYLAMINES
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Dilithiation of N-(tert-butoxycarbonyl)-2-methylbenzylamine (1a) followed by treatment with N,N-dimethylformamide affords 2-(tert-butoxycarbonyl)-3-hydroxy-tetrahydroisoquinoline (3a).Dehydration and reduction of 3a afford BOC-tetrahydroisoquinoline (5a).The methodology is also applicable to synthesis of chloro and fluoro substituted tetrahydroisoquinolines (5b,c), 3 and 4-substituted derivatives (8,10), and the hexahydro-2H-benzoquinolizine ring system (13).
- Clark, Robin D.,Jahangir
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p. 1699 - 1703
(2007/10/02)
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