✦ LIBER ✦
Three New 24-Noroleanane Triterpenoids from Quercus aliena var. acuteserrata
✍ Scribed by Hua-Dong Chen; Sheng-Ping Yang; Shang-Gao Liao; Chuan-Rui Zhang; Jian-Min Yue
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- German
- Weight
- 176 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Three new 24-noroleanane triterpenoids, i.e., 2a,19a-dihydroxy-3-oxo-24-norolean-12-en-28-oic acid (1) and 19a-hydroxy-3-oxo-24-norolean-12-en-28-oic acid (2), and 2a,3b,19a-trihydroxy-24-norolean-12en-28-oic acid (3) were isolated from Quercus aliena var. acuteserrata, together with three known compounds, bartogenic acid (4), ilexgenin A (5), and aophitolic acid (6). Their structures were established by spectroscopic methods, especially 2D-NMR and MS analyses.