116539-58-3Relevant articles and documents
An Improved Process for Synthesis of (S)-Duloxetine Hydrochloride Involving Enzymatic Asymmetric Carbonyl Reduction on a Novel Ketoamine
Sasane, Sachin A.,Husain, Mofazzal,Bhise, Nandu B.,Singh, Girij P.,Joseph, Alex,Shenoy, Gautham G.
, p. 1 - 8 (2020)
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Duloxetine hydrochloride salt of basic and duloxetine (by machine translation)
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Paragraph 0052-0054, (2017/06/02)
[Problem] to suppress toxic byproducts, and suppressing the formation of decomposition products of high purity optical isomers as well as the method for manufacturing a basic duloxetine hydrochloride duloxetine. [Solution] a basic manufacturing method of duloxetine, [...], potassium hydroxide and toluene in the presence of alcohol in the mixing step, and, by heating the reaction mixture obtained, comprising the step of distilling off the solvent in the reaction portion, a basic manufacturing method of duloxetine. [Drawing] no (by machine translation)
Chemoenzymatic synthesis of (S)-duloxetine using carbonyl reductase from Rhodosporidium toruloides
Chen, Xiang,Liu, Zhi-Qiang,Lin, Chao-Ping,Zheng, Yu-Guo
supporting information, p. 82 - 89 (2016/02/23)
A chemoenzymatic strategy was developed for (S)-duloxetine production employing carbonyl reductases from newly isolated Rhodosporidium toruloides into the enantiodetermining step. Amongst the ten most permissive enzymes identified, cloned, and overexpressed in Escherichia coli, RtSCR9 exhibited excellent activity and enantioselectivity. Using co-expressed E. coli harboring both RtSCR9 and glucose dehydrogenase, (S)-3-(dimethylamino)-1-(2-thienyl)-1-propanol 3a was fabricated with so far the highest substrate loading (1000 mM) in a space-time yield per gram of biomass (DCW) of 22.9 mmol L-1 h-1 g DCW-1 at a 200-g scale. The subsequent synthetic steps from RtSCR9-catalyzed (S)-3a were further performed, affording (S)-duloxetine with 60.2% overall yield from 2-acethylthiophene in >98.5% ee.