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@ARTICLE{Mack:893078,
author = {Mack, Kevin and Doeker, Moritz and Grabowski, Laura and
Jupke, Andreas and Rother, Dörte},
title = {{E}xtractive in-situ product removal for the application of
naturally produced {L}-alanine as amine donor in enzymatic
metaraminol production},
journal = {Green chemistry},
volume = {23},
number = {13},
issn = {1463-9270},
address = {Cambridge},
publisher = {RSC},
reportid = {FZJ-2021-02546},
pages = {4892-4901},
year = {2021},
abstract = {Vicinal amino alcohols such as metaraminol find direct
application in pharmaceuticals and serve as building blocks
for fine chemicals. The amine transaminase enzyme can
facilitate the stereoselective production of such amino
alcohols, which have two chiral centers, e.g. by
transamination from 2-hydroxy ketones in the presence of an
amine donor. The feasibility of enzymatic metaraminol
production has already been demonstrated with the amine
donor isopropylamine. This amine donor has the drawback of
an unfavorable reaction equilibrium for the target reaction
and being crude oil-based. Therefore, we substituted
isopropylamine with the bio-based amine donor L-alanine. As
the transamination reaction is also thermodynamically
limited when utilizing L-alanine, in situ liquid–liquid
extraction of metaraminol can solve this drawback and was
implemented to increase the conversions and initiate
downstream processing steps. We investigated a suitable
solvent–enzyme combination and determined a distinct
operational window in terms of reaction conditions for
combining the enzymatic metaraminol production with product
extraction in a smart process concept. This study thus
presents a powerful example for the use of the bio-based
amine donor L-alanine in combination with efficient process
intensification of biocatalytic drug synthesis by means of
in situ product removal.},
cin = {IBG-1},
ddc = {540},
cid = {I:(DE-Juel1)IBG-1-20101118},
pnm = {2172 - Utilization of renewable carbon and energy sources
and engineering of ecosystem functions (POF4-217)},
pid = {G:(DE-HGF)POF4-2172},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000664600800001},
doi = {10.1039/D1GC00852H},
url = {https://juser.fz-juelich.de/record/893078},
}