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Chloroperoxidase-catalyzed oxidation of methionine derivatives
被引:16
|作者:
Holland, HL
[1
]
Brown, FM
[1
]
Lozada, D
[1
]
Mayne, B
[1
]
Szerminski, WR
[1
]
van Vliet, AJ
[1
]
机构:
[1] Brock Univ, Dept Chem, St Catharines, ON L2S 3A1, Canada
关键词:
amino acid oxidation;
biocatalysis;
biotransformation;
chloroperoxidase;
enzyme catalysis;
lipase;
sulfoxidation;
D O I:
10.1139/V02-025
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Treatment of N-methoxycarbonyl C-carboxylate ester derivatives of L- and D-methionine and L-ethionine by chloroperoxidase-hydrogen peroxide resulted in oxidation at sulfur to produce the (R-S) sulfoxide in moderate to high diastereomeric excess. The (R-S) sulfoxide of methionine was also obtained in moderate to high diastereomeric excess from (+/-)(SO)-N-methoxycarbonyl-L-methionine methyl ester sulfoxide by ester hydrolysis using alpha-chymotrypsin, Aspergillus sp. protease or subtilisin Carlsberg.
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页码:633 / 639
页数:7
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