Efficient synthesis of polycycles bearing prenylated, geranylated, and farnesylated citrans: application to 3′-prenylrubranine and petiolin D regioisomer
摘要:
Efficient synthetic routes for biologically interesting polycycles with prenylated, geranylated, and farnesylated citrans were developed from several trihydroxybenzenes with prenyl, geranyl, and farnesyl groups on the benzene rings. Ethylenediamine diacetate-catalyzed cyclization by a domino aldol-type/electrocyclization/H-shift/hetero Diels-Alder reaction of prenylated, geranylated, and farnesylated trihydroxybenzenes with citral or trans,trans-farnesal provided a variety of tetracycles bearing prenylated, geranylated, and farnesylated citrans. The mechanistic pathway for regio- and stereochemistry of synthesized polycycles was described. As an application of this methodology, 3'-prenylrubranine and petiolin D regioisomer were first synthesized. (C) 2011 Elsevier Ltd. All rights reserved.
Efficient synthesis of polycycles bearing prenylated, geranylated, and farnesylated citrans: application to 3′-prenylrubranine and petiolin D regioisomer
作者:Xue Wang、Yong Rok Lee
DOI:10.1016/j.tet.2011.09.075
日期:2011.11
Efficient synthetic routes for biologically interesting polycycles with prenylated, geranylated, and farnesylated citrans were developed from several trihydroxybenzenes with prenyl, geranyl, and farnesyl groups on the benzene rings. Ethylenediamine diacetate-catalyzed cyclization by a domino aldol-type/electrocyclization/H-shift/hetero Diels-Alder reaction of prenylated, geranylated, and farnesylated trihydroxybenzenes with citral or trans,trans-farnesal provided a variety of tetracycles bearing prenylated, geranylated, and farnesylated citrans. The mechanistic pathway for regio- and stereochemistry of synthesized polycycles was described. As an application of this methodology, 3'-prenylrubranine and petiolin D regioisomer were first synthesized. (C) 2011 Elsevier Ltd. All rights reserved.
Synthesis and Antimalarial Activity of Mallatojaponin C and Related Compounds
作者:Alexander L. Eaton、Seema Dalal、M. Belen Cassera、Shuqi Zhao、David G. I. Kingston
DOI:10.1021/acs.jnatprod.6b00347
日期:2016.6.24
antiplasmodial and cytocidal activities against the malaria parasite Plasmodium falciparum, was synthesized in three steps from 2′,4′,6′-trihydroxyacetophenone, and various derivatives were synthesized in an attempt to improve the bioactivity of this class of compounds. Two derivatives, the simple prenylated phloroglucinols 12 and 13, were found to have comparable antiplasmodial activities to that of mallotojaponin