Efficient Synthesis of Norbuprenorphines Coupled with Enkephalins and Investigation of Their Permeability

AuthorSaeed Balalaieen
AuthorMorteza Malakoutikhahen
AuthorMeritxell Teixidóen
AuthorVaezeh Fathi Vavsarien
AuthorErnest Giralten
AuthorYaghoub Haghighatniaen
AuthorFatima Hamdanen
AuthorArmin Arabanianen
Issued Date2019-07-31en
AbstractAn efficient approach for the synthesis of norbuprenorphin derivatives through coupling of enkephalins and norbuprenorphine intermediates is described. Norbuprenorphine derivative was synthesized from thebaine and then, its reaction with succinic acid and phthalic acid was also studied. Meanwhile, the synthesis of enkephalins was done using solid phase peptide synthesis approach. Furthermore, after cleavage of the peptide from the surface of the resin, the coupling of enkephalins with norbuprenorphine derivative was done using TBTU as a coupling reagent then the derivatives were purified using preparative high-pressure liquid chromatography and their structures were confirmed using high-resolution mass spectrometry data. Later, their permeability across membranes was investigated. After PAMPA studies, it was found that the permeability of all norbuprenorphin-enkephalin derivatives was increased; however, succinic and phthalic acid derivatives showed higher permeability than norbuprenorphine-Leu-enkephalin.en
DOIhttps://doi.org/10.22037/ijpr.2019.14712.12602en
KeywordEnkephalinen
KeywordPermeabilityen
KeywordNorbuprenorphineen
KeywordMembraneen
KeywordCouplingen
KeywordSolid phase peptide synthesisen
PublisherBrieflandsen
TitleEfficient Synthesis of Norbuprenorphines Coupled with Enkephalins and Investigation of Their Permeabilityen
TypeOriginal Articleen

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