Semisynthetic studies identify mitochondria poisons from botanical dietary supplements—Geranyloxycoumarins from Aegle marmelos
作者:Jun Li、Fakhri Mahdi、Lin Du、Mika B. Jekabsons、Yu-Dong Zhou、Dale G. Nagle
DOI:10.1016/j.bmc.2013.01.048
日期:2013.4
Therefore, five fatty acyl geranyloxycoumarin ester derivatives (11–15) were prepared from marmin (3) and commercial fatty acyl chlorides by semisynthesis. The unsaturated C-6′ linoleic acid ester derivative 14 that was structurally most similar to 1 and 2, inhibited HIF-1 activation with comparable potency (IC50 0.92 μM). The octanoyl (11) and undecanoyl (12) ester derivatives also suppressed HIF-1 activation
Bael树Aegle marmelos脂质提取物的生物测定引导分离和随后的结构解析产生了两种不稳定的酰化香叶氧基香豆素混合物 ( 1 – 2 )、六种香叶氧基香豆素 ( 3 – 8 )、(+)-9'-异戊木香豆素树脂( 9 ) 和脱氢马铃薯碱( 10 )。在基于 T47D 细胞的报告基因检测中,1和2有效抑制缺氧诱导的 HIF-1 激活(IC 50值分别为0.18 和 1.10 μg mL -1)。材料不足和化学不稳定性阻碍了脂肪酰基侧链烯烃取代模式的完全描绘1和2。因此,五个脂肪酰基geranyloxycoumarin酯衍生物(11 - 15)从marmin(制备3通过半合成)和商业脂肪酰基氯化物。结构上与1和2最相似的不饱和 C-6' 亚油酸酯衍生物14抑制 HIF-1 活化,具有相当的效力 (IC 50 0.92 μM)。辛酰基(11 ) 和十一酰基( 12 ) 酯衍生物也抑制 HIF-1