| STUDIES ON STEROIDAL PLANT-GROWTH REGULATORS (ⅩⅦ)——A NEW SYNTHESIS OF HOMOBRASSINOLIDE AND (22S,23S)-22,23-EPI-HOMOBRASSINOLIDE |
| |
| 引用本文： | 朱佳玲,周维善.STUDIES ON STEROIDAL PLANT-GROWTH REGULATORS (ⅩⅦ)——A NEW SYNTHESIS OF HOMOBRASSINOLIDE AND (22S,23S)-22,23-EPI-HOMOBRASSINOLIDE[J].中国科学B辑(英文版),1991(6). |
| |
| 作者姓名： | 朱佳玲 周维善 |
| |
| 作者单位： | School of Pharmacy，Shanghai Medical University，Shanghai 200032，PRC，Shanghai Institute of Organic Chemistry，Academia Sinica，Shanghai 200032，PRC |
| |
| 摘 要： | Homobrassinolide (2) and (22S, 23S)-22,23-epi-homobrassinolide (4) were synthesized fromstigmasterol in seven steps respectively in 4.7% and 24.1% overall yields. The ratio of 2 to 4is 1:5. The key step is the highly regioselective formation of the B--homo-7-oxa-lactone ringby oxidation of an enol silyl ether with 3--chloro-peroxybenzoic acid.
|
| 本文献已被 CNKI 等数据库收录！ |
|
