Phenolic Esters of O-Desmethylvenlafaxine with Improved Oral Bioavailability and Brain Uptake

O-Desmethylvenlafaxine (desvenlafaxine, ODV) is a recently approved antidepressant which in some clinical studies failed to meet a satisfactory end-point. The aim of this study was to prepare a series of phenolic esters of ODV and evaluate their potential as ODV prodrugs with improved brain uptake....

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Main Authors: Yang Zhang, Yan Yang, Sen Zhao, Zhichao Yang, Hong Yang, J. Paul Fawcett, Youxin Li, Jingkai Gu, Tiemin Sun
Format: Article
Language:English
Published: MDPI AG 2013-12-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/18/12/14920
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author Yang Zhang
Yan Yang
Sen Zhao
Zhichao Yang
Hong Yang
J. Paul Fawcett
Youxin Li
Jingkai Gu
Tiemin Sun
author_facet Yang Zhang
Yan Yang
Sen Zhao
Zhichao Yang
Hong Yang
J. Paul Fawcett
Youxin Li
Jingkai Gu
Tiemin Sun
author_sort Yang Zhang
collection DOAJ
description O-Desmethylvenlafaxine (desvenlafaxine, ODV) is a recently approved antidepressant which in some clinical studies failed to meet a satisfactory end-point. The aim of this study was to prepare a series of phenolic esters of ODV and evaluate their potential as ODV prodrugs with improved brain uptake. Fifteen phenolic esters (compounds 1a–o) were synthesized and their pharmacokinetic profiles evaluated in rat. The four compounds producing the highest relative bioavailability of ODV in rat (compounds 1c, 1e, 1n, 1o) were then studied to evaluate their brain uptake. Of these four compounds, compound 1n (the piperonylic acid ester of ODV) demonstrated the highest Cmax of ODV both in the rat hypothalamus and total brain. Finally the pharmacokinetics of 1n were evaluated in beagle dog where the increase in relative bioavailability of ODV was found to be as great as in rat. This high relative bioavailability of ODV coupled with its good brain penetration make 1n the most promising candidate for development as an ODV prodrug.
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spelling doaj.art-2536e831fb0d4be5869842c04dcd46892022-12-22T02:18:29ZengMDPI AGMolecules1420-30492013-12-011812149201493410.3390/molecules181214920molecules181214920Phenolic Esters of O-Desmethylvenlafaxine with Improved Oral Bioavailability and Brain UptakeYang Zhang0Yan Yang1Sen Zhao2Zhichao Yang3Hong Yang4J. Paul Fawcett5Youxin Li6Jingkai Gu7Tiemin Sun8Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Ministry of Education, Shenyang 110016, ChinaResearch Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun 130021, ChinaResearch Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun 130021, ChinaResearch Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun 130021, ChinaResearch Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun 130021, ChinaSchool of Pharmacy, University of Otago, PO Box 56, Dunedin 9054, New ZealandResearch Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun 130021, ChinaResearch Center for Drug Metabolism, College of Life Sciences, Jilin University, Changchun 130021, ChinaKey Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Ministry of Education, Shenyang 110016, ChinaO-Desmethylvenlafaxine (desvenlafaxine, ODV) is a recently approved antidepressant which in some clinical studies failed to meet a satisfactory end-point. The aim of this study was to prepare a series of phenolic esters of ODV and evaluate their potential as ODV prodrugs with improved brain uptake. Fifteen phenolic esters (compounds 1a–o) were synthesized and their pharmacokinetic profiles evaluated in rat. The four compounds producing the highest relative bioavailability of ODV in rat (compounds 1c, 1e, 1n, 1o) were then studied to evaluate their brain uptake. Of these four compounds, compound 1n (the piperonylic acid ester of ODV) demonstrated the highest Cmax of ODV both in the rat hypothalamus and total brain. Finally the pharmacokinetics of 1n were evaluated in beagle dog where the increase in relative bioavailability of ODV was found to be as great as in rat. This high relative bioavailability of ODV coupled with its good brain penetration make 1n the most promising candidate for development as an ODV prodrug.http://www.mdpi.com/1420-3049/18/12/14920O-desmethylvenlafaxinephenolic esterprodrugpharmacokineticsbrain uptakeratdog
spellingShingle Yang Zhang
Yan Yang
Sen Zhao
Zhichao Yang
Hong Yang
J. Paul Fawcett
Youxin Li
Jingkai Gu
Tiemin Sun
Phenolic Esters of O-Desmethylvenlafaxine with Improved Oral Bioavailability and Brain Uptake
Molecules
O-desmethylvenlafaxine
phenolic ester
prodrug
pharmacokinetics
brain uptake
rat
dog
title Phenolic Esters of O-Desmethylvenlafaxine with Improved Oral Bioavailability and Brain Uptake
title_full Phenolic Esters of O-Desmethylvenlafaxine with Improved Oral Bioavailability and Brain Uptake
title_fullStr Phenolic Esters of O-Desmethylvenlafaxine with Improved Oral Bioavailability and Brain Uptake
title_full_unstemmed Phenolic Esters of O-Desmethylvenlafaxine with Improved Oral Bioavailability and Brain Uptake
title_short Phenolic Esters of O-Desmethylvenlafaxine with Improved Oral Bioavailability and Brain Uptake
title_sort phenolic esters of o desmethylvenlafaxine with improved oral bioavailability and brain uptake
topic O-desmethylvenlafaxine
phenolic ester
prodrug
pharmacokinetics
brain uptake
rat
dog
url http://www.mdpi.com/1420-3049/18/12/14920
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