| 发明名称 |
METHOD FOR PRODUCING CYCLIC LACTIC ACID OLIGOMER |
| 摘要 |
A process for the preparation of cyclic lactic acid oligomers represented by general formula (1) characterized by polymerizing lactide in the presence of an alkali metal compound represented by the formula (2): R-Y-Me (wherein R i s an aliphatic group, an aromatic group, -Si(R10)(R11)(R12), -CH(R20)CONR21R22 , or -CH(R30)COOR31; Y is -O-, -S-, or -NR40-; and Me is an alkali metal); and cyclic lactic acid oligomers prepared by the process.
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| 申请公布号 |
CA2385318(A1) |
申请公布日期 |
2001.03.29 |
| 申请号 |
CA20002385318 |
申请日期 |
2000.09.20 |
| 申请人 |
AMATO PHARMACEUTICAL PRODUCTS, LTD. |
发明人 |
TAKANO, JIRO;WATANABE, MIKIO;ISHIHARA, YOSHIMI;MURAKAMI, MASAHIRO |
| 分类号 |
C07D323/00;(IPC1-7):C07D323/00;C07B61/00;A61P35/00;A61P3/04;A61P37/04;A61P3/10;C07D319/12;A61K31/365 |
主分类号 |
C07D323/00 |
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