米內苷(minecoside),白色無定形粉末(甲醇),mp 141-143℃,Molish反應陽性,易溶於甲醇,難溶於非極性溶劑,目前作用不詳。
基本介紹
- 中文名:米內苷
- 外文名:minecoside
- 狀態:白色無定形粉末
- mp:141-143℃
化學結構式,NMR數據,
化學結構式
NMR數據
1H-NMR(DMSO-d6,400 MHz) δ:5.09(1H,m,H-1),6.42(1H,br.d,J=6.0 Hz,H-3),4.94(1H,dd,J=6.0,4.0 Hz,H-4),2.47(1H,m,H-5),5.00(1H,m,H-6),3.65(1H,s,H-7),2.44(1H,m,H-9),3.91(1H,dd,J=13.2,4.8 Hz,H-10),3.71(2H,m,H-10,6′),4.61(1H,d,J=7.6 Hz,H-1′),3.04(2H,m,H-2′,4′),3.18(2H,m,H-3′,5′),3.42(1H,m,H-6′),7.13(1H,d,J=1.6 Hz,H-2′′),6.97(1H,d,J=8.4 Hz,H-5′′),7.17(1H,dd,,J=8.8,1.6 Hz,H-6′′),6.42(1H,d,J=15.6 Hz,H-α′′),7.58(1H,d,J=15.6 Hz,H-β′′)。
13C-NMR(DMSO-d6,100 MHz) δ:
1 | 92.9 |
3 | 141.1 |
4 | 101.7 |
5 | 35.1 |
6 | 79.2 |
7 | 58.2 |
8 | 65.7 |
9 | 41.8 |
10 | 58.5 |
11 | |
β-D-glc | |
1′ | 97.8 |
2′ | 73.4 |
3′ | 77.4 |
4′ | 70.3 |
5′ | 76.4 |
6′ | 61.4 |
1′′ | 126.8 |
2′′ | 114.4 |
3′′ | 146.6 |
4′′ | 150.2 |
5′′ | 112.0 |
6′′ | 121.4 |
α′′ | 114.4 |
β′′ | 145.6 |
C=O | 166.4 |
OCH3 | 55.6 |