发明名称 |
Method for preparing cabazitaxel from 10-deacetylbaccatin III in high yield, and novel intermediate therefor |
摘要 |
The present invention relates to a novel method for preparing cabazitaxel from 10-deacetylbaccatin III, and a novel intermediate therefor, and more specifically, to: a method which allows cabazitaxel to be more easily prepared in a high yield and in a high purity within a short time compared with a conventional method by preparing cabazitaxel via a novel intermediate using 10-deacetylbaccatin III as a starting material, and thus is suitable for industrial mass production; and a novel intermediate therefor. |
申请公布号 |
US9260401(B2) |
申请公布日期 |
2016.02.16 |
申请号 |
US201314647147 |
申请日期 |
2013.12.03 |
申请人 |
SAMYANG BIOPHARMACEUTICALS CORPORATION |
发明人 |
Lee Na Young;Kim Seong Ho;Kim Young Min;Cho Jin Suk;Kim Moon Suk |
分类号 |
C07D305/14;A61K31/337;C07D413/12;C07F7/18 |
主分类号 |
C07D305/14 |
代理机构 |
Birch, Stewart, Kolasch & Birch, LLP |
代理人 |
Birch, Stewart, Kolasch & Birch, LLP |
主权项 |
1. A method for preparing cabazitaxel comprising the steps of:
1) reacting 10-deacetylbaccatin III of Chemical Formula 2 with a silylating agent to obtain an intermediate of Chemical Formula 3 in which hydroxy group at the 7 position is protected by a silylated radical; 2) methylating hydroxy group at the 10 position of the intermediate of Chemical Formula 3 to obtain an intermediate of Chemical Formula 4; 3) deprotecting hydroxy group at the 7 position of the intermediate of Chemical Formula 4 to obtain an intermediate of Chemical Formula 5; 4) methylating hydroxy group at the 7 position of the intermediate of Chemical Formula 5 to obtain an intermediate of Chemical Formula 6; 5) esterifying hydroxy group at the 13 position of the intermediate of Chemical Formula 6 in the presence of oxazolidine acid derivative of Chemical Formula 8 to obtain an intermediate of Chemical Formula 7; and 6) treating the intermediate of Chemical Formula 7 with an acid to obtain cabazitaxel of Chemical Formula 1: wherein Ac represents acetyl group; Me represents methyl group; Ph represents phenyl group; and M represents a silylated radical. |
地址 |
Seoul KR |