Novel concurrent redox cascades of (R)- and (S)-carvones enables access to carvo-lactones with distinct regio- and enantioselectivity
作者:Naseem Iqbal、Jon D. Stewart、Peter Macheroux、Florian Rudroff、Marko D. Mihovilovic
DOI:10.1016/j.tet.2018.11.005
日期:2018.12
Within this study, we investigated a one-pot enzymatic redox cascade composed of different enoate reductases (5 EREDs from diverse bacterial origins) and various Baeyer-Villigermonooxygenases (4 BVMOs) with complementary regioselectivity that enabled access to six out of eight carvo-lactone stereoisomers starting from readily available natural carvones. Applicability of this two-step cascade was demonstrated
Microbial Baeyer–Villiger oxidation of terpenones by recombinant whole-cell biocatalysts—formation of enantiocomplementary regioisomeric lactones
作者:Petra Černuchová、Marko D. Mihovilovic
DOI:10.1039/b703175k
日期:——
Recombinant whole-cell expression systems for BaeyerâVilliger monooxygenases of various bacterial origin were utilized in the regiodivergent biooxidation of cyclic terpenones enabling access to enantio- and regioisomeric lactones on preparative scale.
Controlling the Regioselectivity of Baeyer-Villiger Monooxygenases by Mutation of Active-Site Residues
作者:Kathleen Balke、Marcus Bäumgen、Uwe T. Bornscheuer
DOI:10.1002/cbic.201700223
日期:2017.8.17
Baeyer–Villigermonooxygenase (BVMO)-mediated regiodivergent conversions of asymmetric ketones can lead to the formation of “normal” or “abnormal” lactones. In a previous study, we were able to change the regioselectivity of a BVMO by mutation of the active-site residues to smaller amino acids, which thus created more space. In this study, we demonstrate that this method can also be used for other
First chemo-enzymatic synthesis of the (R)-Taniguchi lactone and substrate profiles of CAMO and OTEMO, two new Baeyer–Villiger monooxygenases
作者:Florian Rudroff、Michael J. Fink、Ramana Pydi、Uwe T. Bornscheuer、Marko D. Mihovilovic
DOI:10.1007/s00706-016-1873-9
日期:2017.1
terpenones and bicyclic ketones, as well as kinetic resolution of racemic cycloketones. We demonstrated the applicability of the title enzymes in the enantioselective synthesis of (R)-(-)-Taniguchi lactone, a buildingblock for the preparation of various natural product analogs such as ent-quinine. GRAPHICAL ABSTRACT:
Metabolism of carveol and dihydrocarveol in Rhodococcus erythropolis DCL14
作者:Mariët J. van der Werf、Anneke M. Boot
DOI:10.1099/00221287-146-5-1129
日期:2000.5.1
assimilates all stereoisomers of carveol and dihydrocarveol as sole source of carbon and energy. Induction experiments with carveol- or dihydrocarveol-grown cells showed high oxygen consumption rates with these two compounds and with carvone and dihydrocarvone. (Dihydro)carveol-grown cells of R. erythropolis DCL14 contained the following enzymic activities involved in the carveol and dihydrocarveol degradation