PRODUCTION PROCESS OF ETHYNYLTHYMIDINE COMPOUNDS FROM 5-METHYLURIDINE AS A STARTING MATERIAL
申请人:Sato Tatsunori
公开号:US20110054164A1
公开(公告)日:2011-03-03
The present invention provides a process for producing 2′,3′-didehydro-3′-deoxy-4′-ethynylthymidine, which is useful as a medicine, in an efficient and industrially advantageous manner, and more specifically, provides a process for producing 2′,3′-didehydro-3′-deoxy-4′-ethynylthymidine as shown below.
(wherein R
1
and R
2
independently represent a protective group for a hydroxy group, or R
1
and R
2
together form a protective group for two hydroxy groups, R
3
and R
4
independently represent a protective group for a hydroxy group, R
5
represents a protective group for a hydroxy group, R
6
represents a protective group for a hydroxy group, X represents a leaving group, and Y represents a halogen atom.)
US8445669B2
申请人:——
公开号:US8445669B2
公开(公告)日:2013-05-21
PROCESS FOR PRODUCTION OF ETHYNYLTHYMIDINE COMPOUND USING 5-METHYLURIDINE AS STARTING RAW MATERIAL