Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2006-05-02
2006-05-02
Wilson, James O. (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S124000, C536S026700, C536S027110, C536S055300, C536S018500, C536S022100, C514S045000, C514S023000, C514S079000, C514S090000, C514S099000, C544S053000, C544S097000, C544S244000, C549S005000, C435S088000, C435S087000, C435S089000, C435S193000, C435S072000
Reexamination Certificate
active
07038039
ABSTRACT:
A desired isomer is selectively prepared by phosphorolyzing and isomerizing an anomer mixture of a 1-phosphorylated saccharide derivative while crystallizing one of the isomers to displace the equilibrium. Furthermore, using the action of a nucleoside phosphorylase, a nucleoside is prepared from the 1-phosphorylated saccharide derivative obtained and a base with improved stereoselectivity and a higher yield. This process is an anomer-selective process for preparing a 1-phosphorylated saccharide derivative and a nucleoside.
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Ando Tomoyuki
Araki Tadashi
Asano Tamotsu
Awano Hirokazu
Fujiwara Junya
Buchanan & Ingersoll PC
Khare Devesh
Mitsui Chemicals Inc.
Wilson James O.
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