Biotransformation of papaverine and in silico docking studies of the metabolites on human phosphodiesterase 10a
作者:Duaa Eliwa、Mohamed A. Albadry、Abdel-Rahim S. Ibrahim、Amal Kabbash、Kumudini Meepagala、Ikhlas A. Khan、Mona El-Aasr、Samir A. Ross
DOI:10.1016/j.phytochem.2020.112598
日期:2021.3
The metabolism of papaverine, the opium benzylisoquinoline alkaloid, with Aspergillusniger NRRL 322, Beauveria bassiana NRRL 22864, Cunninghamella echinulate ATCC 18968 and Cunninghamella echinulate ATCC 1382 has resulted in O-demethylation, O-methylglucosylation and N-oxidation products. Two new metabolites (4″-O-methyl-β-D-glucopyranosyl) 4'-demethyl papaverine and (4″-O-methyl-β-D-glucopyranosyl)
Oxygen-Free Regioselective Biocatalytic Demethylation of Methyl-phenyl Ethers via Methyltransfer Employing Veratrol-<i>O</i>-demethylase
作者:Christopher Grimm、Mattia Lazzarotto、Simona Pompei、Johanna Schichler、Nina Richter、Judith E. Farnberger、Michael Fuchs、Wolfgang Kroutil
DOI:10.1021/acscatal.0c02790
日期:2020.9.18
The cleavage of aryl methyl ethers is a common reaction in chemistry requiring rather harsh conditions; consequently, it is prone to undesired reactions and lacks regioselectivity. Nevertheless, O-demethylation of aryl methyl ethers is a tool to valorize natural and pharmaceutical compounds by deprotecting reactive hydroxyl moieties. Various oxidative enzymes are known to catalyze this reaction at
Hypervalent iodine oxidation products of papaverine and its microbial metabolites
作者:G.Chandrasekara Reddy
DOI:10.1016/0040-4039(94)02426-c
日期:1995.2
(Diacetoxyiodo) benzene (DAIB) oxidizes papaverine to papaveraldine (2) and to 1-hydroxymethyl-6, 7-dimethoxyisoquinoline (3), whereas 3' -desmethylpapaverine and 6-desmethylpapaverine are converted into novel products (4) and (5), respectively.