| 发明名称 |
A GREEN CHEMISTRY PROCESS FOR THE PREPARATION OF PREGNADIENE ESTERS |
| 摘要 |
<p>A process for the preparation of Pregna-1, 4-diene - 3,20-dione-16,17-acetal-21 esters of Formula (I) by a green process chemistry using a combination of an ionic liquid, organic solvent optionally in the presence of an inorganic nitrite. Formula I, wherein R and R' represent a) R= H, R'-cyclohexyl or b) R=CO-CH (CH<SUB>3</SUB>) <SUB>2</SUB>, R'=cyclohexyl or c) R=H, R'=CH<SUB>2</SUB>-CH<SUB>2</SUB>-CH<SUB>3</SUB>.</p> |
| 申请公布号 |
WO2007054974(B1) |
申请公布日期 |
2007.11.22 |
| 申请号 |
WO2006IN00399 |
申请日期 |
2006.09.28 |
| 申请人 |
ARCH PHARMALAB LIMITED;UJAGARE, ASHISH;KOCHREKAR, D., A.;UZAGARE, MATHEW, C. |
发明人 |
UJAGARE, ASHISH;KOCHREKAR, D., A.;UZAGARE, MATHEW, C. |
| 分类号 |
C07J71/00 |
主分类号 |
C07J71/00 |
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