Title:
メチルコバラミンの製造法
Document Type and Number:
Japanese Patent JP3948958
Kind Code:
B2
Abstract:
The present invention provides an industrially excellent and novel process for producing methylcobalamin useful as medicines. Namely, it provides a process for producing methylcobalamin, which comprises the step of methylating cyanocobalamin or hydroxocobalamin in the presence of a reducing agent and a water-soluble methylating agent.
Inventors:
Yoshihiko Kubu
Hiroshi Kuroda
Hiroshi Kuroda
Application Number:
JP2001543568A
Publication Date:
July 25, 2007
Filing Date:
December 07, 2000
Export Citation:
Assignee:
Eisai R & D Management Co., Ltd.
International Classes:
C07H23/00
Domestic Patent References:
| JP45038059B1 | ||||
| JP51000120B1 |
Other References:
Journal of Chromatography A,1996年,Vol.738,p.43-55
Biotechnology and Applied Biochemistry,1987年,Vol.9,p.39-52
Biotechnology and Applied Biochemistry,1987年,Vol.9,p.39-52
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa