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Title:
PROCESSES FOR THE PREPARATION OF 2,2'-ANHYDRONUCLEIC ACID COMPOUND DERIVATIVES
Document Type and Number:
WIPO Patent Application WO/2002/006296
Kind Code:
A1
Abstract:
2,2'-Anhydronucleic acid compound derivatives useful as intermediates of drugs or agricultural chemicals or the like can be prepared from inexpensive starting compounds by reacting a compound of the general formula (2) with a compound of the general formula (3) to thereby obtain a 2,2'-anhydronucleic acid compound derivative: (3) (wherein R1, R2, R3, R4, Q, X, Y and Z represent specific groups respectively). Further, L-cytidine derivatives useful as intermediates of drugs or agricultural chemicals or the like can be prepared by synthesizing a 2'-alkoxycytidine directly from a 2,2'- anhydrocytidine derivative.

Inventors:
SUZUKI TSUNEJI (JP)
NAGASE HIROSHI (JP)
KAI AKIYOSHI (JP)
IIZUKA HAJIME (JP)
Application Number:
PCT/JP2001/006263
Publication Date:
January 24, 2002
Filing Date:
July 19, 2001
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
SUZUKI TSUNEJI (JP)
NAGASE HIROSHI (JP)
KAI AKIYOSHI (JP)
IIZUKA HAJIME (JP)
International Classes:
C07D498/04; C07H9/06; (IPC1-7): C07H19/067; C07D498/14
Domestic Patent References:
WO1995020595A11995-08-03
Foreign References:
US4104461A1978-08-01
Attorney, Agent or Firm:
Kaneda, Nobuyuki (16th Kowa Bldg. 9-20 Akasaka 1-chome Minato-ku, Tokyo, JP)
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