versatile method for the total synthesis of cyclic diphenyl ether-type diarylheptanoids, acerogenin C, acerogenin L, (±)-galeon, and (±)-pterocarine was described. The Ullmann reaction of suitably substituted linear diphenylheptanoids was employed for the intramolecular formation of the key ether intermediates as the final step. The prerequisite diarylheptanoids were prepared by a series of cross-aldol
Total synthesis of acerogenins E, G and K, and centrolobol
作者:Tetsuhiro Ogura、Toyonobu Usuki
DOI:10.1016/j.tet.2013.01.065
日期:2013.4
The first total synthesis of the diaiylheptanoid acerogenins E and K, isolated from Acer nikoense MAXIM., is described. Formation of the 13-membered m,m-cyclophane skeleton was successfully achieved on the basis of a domino process involving a Miyaura arylborylation intramolecular Suzuki reaction. The cyclization precursor was prepared via a Wittig reaction and Claisen Schmidt condensation, which proceeded in moderate yields. The total synthesis of acerogenin G and centrolobol was also achieved from a common synthetic intermediate. (C) 2013 Elsevier Ltd. All rights reserved.
Linear diarylheptanoids as potential anticancer therapeutics: synthesis, biological evaluation, and structure–activity relationship studies
作者:A. F. M. Motiur Rahman、Yang Lu、Hwa-Jong Lee、Hyunji Jo、Wencui Yin、Mohammad Sayed Alam、Hyochang Cha、Adnan A. Kadi、Youngjoo Kwon、Yurngdong Jahng
DOI:10.1007/s12272-018-1004-8
日期:2018.12
detrimental action of the drug toward the intestinal flora, a series of linear diarylheptanoids (LDHs) were designed and synthesized in 7 steps with good-to-moderate yields. All synthesized compounds were evaluated for their antibacterial, antiproliferative, and topoisomerase-I and -IIα inhibitory activity. Overall, all compounds showed little to no activity against the bacterial strains tested. Most of the