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Title:
PROCESS FOR PRODUCTION OF GLUCOPYRANOSYLOXYPYRAZOLE DERIVATIVE
Document Type and Number:
WIPO Patent Application WO/2006/098413
Kind Code:
A1
Abstract:
Disclosed is a process for producing a glucopyranosyloxypyrazole derivative which is useful as a prophylactic or therapeutic agent for a disease induced by hyperglycemia, such as diabetes, a diabetes complication and obesity. A process for producing a glucopyranosyloxypyrazole derivative readily and efficiently, the process comprising reacting a benzylpyrazole derivative represented by the general formula: wherein R1, R2, R3, R4 and R5 independently represent, for example, a hydrogen atom, a halogen atom or an alkyl, alkoxy or arylmethyloxy group; R6 represents an alkyl group; and R7 represents, for example, a hydrogen atom or an alkyl, alkoxy or arylmethyloxy group; with a compound represented by the general formula: wherein PG1 represents, for example, a pivaloyl group; and X1 represents, for example, a bromine atom. This process is quite useful as the process for producing a pharmaceutical.

Inventors:
KASAI KIYOSHI (JP)
OZAWA TETSUJI (JP)
FUSHIMI NOBUHIKO (JP)
ISAWA HIDETOSHI (JP)
KIKUCHI KEN (JP)
KOBAYASHI MASAHIRO (JP)
SONEHARA JUNICHI (JP)
KUBOTA MINORU (JP)
Application Number:
PCT/JP2006/305295
Publication Date:
September 21, 2006
Filing Date:
March 16, 2006
Export Citation:
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Assignee:
KISSEI PHARMACEUTICAL (JP)
KASAI KIYOSHI (JP)
OZAWA TETSUJI (JP)
FUSHIMI NOBUHIKO (JP)
ISAWA HIDETOSHI (JP)
KIKUCHI KEN (JP)
KOBAYASHI MASAHIRO (JP)
SONEHARA JUNICHI (JP)
KUBOTA MINORU (JP)
International Classes:
C07H17/02
Domestic Patent References:
WO2002053573A12002-07-11
WO2001016147A12001-03-08
WO2002036602A12002-05-10
WO2002068439A12002-09-06
WO2002098893A12002-12-12
WO2003020737A12003-03-13
WO2005021566A22005-03-10
Foreign References:
JP2003012686A2003-01-15
Other References:
See also references of EP 1864993A4
None
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