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Applied Biochemistry and Biotechnology, Vol.164, No.2, 125-132, 2011
Enantioselective Hydrolysis of Glycidyl Methylphenyl Ethers by Botryosphaeria Dothidea ZJUZQ007: Effect of Substitution Pattern on Enantioselectivity
Resolution of racemic glycidyl (o, m, p)-methylphenyl ethers by using a newly isolated Botryosphaeria dothidea ZJUZQ007 with epoxide hydrolase activity affords enantiopure epoxides with enantiomeric excesses (e.e.(s)) of 91-99% and enantiomeric ratios (E) of 18.1 to 48.6. The (R)-enantiomer was obtained from rac-glycidyl (o or m)-methylphenyl ethers whereas the (S)-epoxides was obtained from glycidyl p-methylphenyl ether. Substitution pattern of the methyl group exerted effects both on configurations of the remaining epoxides and enantioselectivities of epoxide hydrolase. The observations were explained by enzyme-substrate docking studies. It is the first example showing that for kinetic resolution of glycidyl methylphenyl ethers, fungal species of B. dothidea was applied.
Keywords:Botryosphaeria dothidea;Docking study;Enantioselectivity;Epoxide hydrolase;Glycidyl methylphenyl ethers