Prenylated chalcones xanthohumol (1) and 2′-hydroxy-3,4,4′-trimethoxy-6′-O-prenyl chalcone (2) were synthesized through the Claisen–Schmidt condensation, O-prenylation, and Claisen rearrangement and deprotection respectively, using phloroglucinol and appropriate benzaldehydes as starting materials. Based on the Mannich reaction of prenylated chalcone 1 or 2 with various secondary amines and formaldehyde in acid alcohol solvent, 10 novel prenylated chalcone Mannich base derivatives 3a–3e and 4a–4e were synthesized. Furthermore, all synthetic compounds were evaluated for antiproliferative activities in vitro against four human cancer cell lines (Aspc-1, SUN-5, HepG-2, and HCT-116) by MTT assay. The results showed that most of them exhibit moderate to good antiproliferative activities against the four human cancer cells with IC50 values of 2.52 to 47.67 μM.
以
氯代
葡萄糖醇和适当的
苯甲醛为起始原料,通过克莱森-施密特缩合反应、O-
肾上腺素化反应和克莱森重排及脱保护反应,分别合成了前酰基
查尔酮黄腐醇(1)和2′-羟基-
3,4,4′-
三甲氧基-6′-O-
肾上腺素查尔酮(2)。根据预炔化
查尔酮 1 或 2 与各种仲胺和
甲醛在酸性醇溶剂中的曼尼希反应,合成了 10 种新型预炔化
查尔酮曼尼希碱衍
生物 3a-3e 和 4a-4e。此外,所有合成化合物都通过 M
TT 法对四种人类癌细胞株(Aspc-1、SUN-5、HepG-2 和 HCT-116)进行了体外抗增殖活性评估。结果表明,大多数合成物对四种人类癌细胞具有中等至良好的抗增殖活性,IC50 值为 2.52 至 47.67 μM。