隐绿原酸 (Cryptochlorogenic acid) 是一种天然产物。
靶点化学性质:白色针状结晶,可溶于甲醇、乙醇、DMSO等有机溶剂。它来源于杜仲、忍冬和金银花。
用途:隐绿原酸具有抗血小板聚集、抗菌、消炎的作用,并可用于含量测定/鉴定/药理实验等。
药理药效:清热解毒,抗菌消炎。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
(-)-5-咖啡酰奎宁酸 | 3-caffeoylquinic acid | 202650-88-2 | C16H18O9 | 354.314 |
新绿原酸 | neochlorogenic acid | 906-33-2 | C16H18O9 | 354.314 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | cis-4-O-caffeoylquinic acid | 87099-76-1 | C16H18O9 | 354.314 |
Tea brewed from chrysanthemum flowers has been widely used in Chinese medicine. The possibly medicinal compounds in Chrysanthemum morifolium tea can be purified by preparative high performance liquid chromatography (HPLC), but this is usually done with acidic conditions, which leads to the hydrolysis of glycosides. In hopes of avoiding this hydrolysis, we explored the effect of weakly basic conditions on the separation and purification of flavonoids and glycosides from Chrysanthemum morifolium. We also explored the effects of weakly basic conditions on chlorogenic acid (3-CQA) and apigenin-7-O-glucoside (A7G). Our results show that the concentration of the weakly basic ammonium hydrogen carbonate and time had no significant effect on A7G, p < 0.01, but it had a significant effect on 3-CQA, p < 0.01. HPLC and ultraviolet (UV) analysis showed that the structure of 3-CQA is destroyed in weakly basic conditions. Caffeic acid, quinic acid, and 3,4-dihydroxymandelic acid, which is a hydrolysate of 3-CQA, were identified by ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS). The results showed that weakly basic conditions could be used for the purification of flavonoids and glycosides but not for caffeoylquinic acids. Moreover, our work clarified the hydrolysis behaviour of caffeoylquinic acids, which can be helpful for research into their functional aspects.