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Selective hydroboration of dieneamines. Formation of hydroxyalkylphenothiazines as MDR modulators

Takács, Daniella and Nagy, Ildikó and Bombicz, Petra and Lejtoviczné Egyed, Orsolya and Jemnitz, Katalin and Riedl, Zsuzsanna and Hajós, György (2012) Selective hydroboration of dieneamines. Formation of hydroxyalkylphenothiazines as MDR modulators. BIOORGANIC & MEDICINAL CHEMISTRY, 20. pp. 4258-4270. ISSN 0968-0896

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Abstract

N-dienylphenothiazines synthesized from tetrazolo[1,5-a]pyridinium salts by treatment with phenothiazine were subjected to catalytic hydrogenation to yield N-butylphenothiazines, whereas transformation of these dienes with borane dimethyl sulfide (BH 3 × Me 2S) resulted in selective hydroboration of one double bond and full reduction of the other double bond to give 2-hydroxybutylphenothiazines. Position of the hydroxyl group was supported by NMR spectroscopy and verified by X-ray analysis. Comparison of MDR modulatory activity of the new derivatives revealed that the hydroxybutyl compounds are promising candidates for development of novel MDR inhibitors. © 2012 Elsevier Ltd. All rights reserved.

Item Type: Article
Uncontrolled Keywords: P-gp inhibition; multidrug resistance; HYDROBORATION; Dieneamine; Catalytic hydrogenation
Subjects: Q Science / természettudomány > QH Natural history / természetrajz > QH301 Biology / biológia > QH3011 Biochemistry / biokémia
R Medicine / orvostudomány > RS Pharmacy and materia medica / gyógyszerészet, gyógyászati eszközök
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 18 Jan 2017 16:27
Last Modified: 18 Jan 2017 16:27
URI: http://real.mtak.hu/id/eprint/45987

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