Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2007-05-22
2007-05-22
Peselev, Elli (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
Reexamination Certificate
active
10476381
ABSTRACT:
The present invention provides a novel industrially excellent and ecological process for producing methylcobalamin which is useful as a medicament etc. More specifically, it provides a process for producing methylcobalamin by reducing cyanocobalamin or hydroxocobalamin in the presence of a reducing agent, and then methylating the reductant by adding a water-soluble methylating agent.
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Hisatake Yoshihiko
Kuroda Hiroshi
Tanaka Takuo
Tsurugi Tomio
Birch & Stewart Kolasch & Birch, LLP
Eisai Co. Ltd.
Peselev Elli
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