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Publication


Featured researches published by Xiyun Zhang.


Journal of Organic Chemistry | 2018

Baeyer–Villiger Monooxygenase-Mediated Synthesis of Esomeprazole As an Alternative for Kagan Sulfoxidation

Yong Koy Bong; Shiwei Song; Jovana Nazor; Michael Vogel; Magnus Widegren; Derek Smith; Steven J. Collier; Robert John Wilson; S. M. Palanivel; Karthik Narayanaswamy; Ben Mijts; Michael D. Clay; Ryan Fong; Jeff Colbeck; Amritha Appaswami; Sheela Muley; Jun Zhu; Xiyun Zhang; Jack Liang; David Entwistle

A wild-type Baeyer-Villiger monooxygenase was engineered to overcome numerous liabilities in order to mediate a commercial oxidation of pyrmetazole to esomeprazole, using air as the terminal oxidant in an almost exclusively aqueous reaction matrix. The developed enzyme and process compares favorably to the incumbent Kagan inspired chemocatalytic oxidation, as esomeprazole was isolated in 87% yield, in >99% purity, with an enantiomeric excess of >99%.


Archive | 2010

ENGINEERED BIOSYNTHESIS OF FATTY ALCOHOLS

Behnaz Behrouzian; Robert Mcdaniel; Xiyun Zhang; Louis Clark


Archive | 2010

Recombinant beta-glucosidase variants for production of soluble sugars from cellulosic biomass

Jie Yang; Xiyun Zhang; Attila Andor


Archive | 2012

Gh61 glycoside hydrolase protein variants and cofactors that enhance gh61 activity

Jie Yang; Xiyun Zhang; Jungjoo Yoon; Kripa Rao; John H. Grate; David Elgart; Dipnath Baidyaroy


Archive | 2010

β-glucosidase variants

Xiyun Zhang; Jie Yang; Dipnath Baidyaroy; Sally Rhiannon Postlethwaite; Attila Andor; Louis Clark; Lisa M. Newman


Archive | 2010

Synthesis of prazole compounds

Yong Koy Bong; Michael D. Clay; Steven J. Collier; Benjamin Mijts; Michael Vogel; Xiyun Zhang; Jun Zhu; Jovana Nazor; Derek Smith; Shiwei Song


Archive | 2009

Biocatalytic processes for the preparation of substantially stereomerically pure fused bicyclic proline compounds

Benjamin Mijts; Sheela Muley; Jack Liang; Lisa M. Newman; Xiyun Zhang; James Lalonde; Michael D. Clay; Jun Zhu; John M. Gruber; Jeffrey Colbeck; John D. Munger; Jagadeesh Mavinahalli; Roger Sheldon


Archive | 2013

Recombinant fungal polypeptides

Xiyun Zhang; Dipnath Baidyaroy


Archive | 2014

BETA-GLUCOSIDASE VARIANTS

Xiyun Zhang; Jie Yang; Dipnath Baidyaroy; Sally Rhiannon Postlethwaite; Attila Andor; Louis Clark; Lisa M. Newman


Archive | 2012

Endoglucanase 1b (eg1b) variants

Ee Lui Ang; Ellen Eberhard; Xiyun Zhang; Wei Zhang; Jing Tian; Derek Smith; Vesna Mitchell

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