Total synthesis and RXRα-mediated transcription studies of neriifolone B and related compounds
作者:Qirong Shen、Yi Dai、Guanghui Wang、Fei Yao、Yinghui Duan、Haifeng Chen、Weige Zhang、Xiaokun Zhang、Xinsheng Yao
DOI:10.1016/j.bmc.2014.03.024
日期:2014.5
4′-dimethyl-4′,5′-dihydropyran-6-one[2′,3′:3,4]xanthone skeleton, was found to be a potent inhibitor of transcription mediated by retinoid X receptor α (RXRα). The first total synthesis of neriifolone B (1) was achieved in 14 steps with an overall yield of 7.1%. A Claisen rearrangement was employed as the key step in the sequence. The activity of six natural xanthones and eight compounds related to neriifolone
发现含有新的4',4'-二甲基-4',5'-二氢吡喃-6-one [2',3':3,4]蒽酮骨架的天然产物Neriifolone B(1)是一种类视黄醇X受体α(RXRα)介导的有效转录抑制剂。以14个步骤完成了neriifolone B(1)的首次全合成,总收率为7.1%。克莱森重排被用作序列中的关键步骤。评价了六种天然氧杂蒽酮和八种与neriifolone B(1)有关的化合物对RXRα介导的转录的活性。两个neriifolone B类似物17和11 ''是RXRα转录活性的有效抑制剂。初步讨论了构效关系研究。