Design, synthesis and in vitro antitumour activity of new goniofufurone and 7- epi -goniofufurone mimics with halogen or azido groups at the C-7 position
A series of new antitumour lactones containing the [3.3.0] bicyclic furano-lactone core and the halogen or azido group at the C-7 position have been designed, synthesized, and evaluated for their in vitro antitumour activity against a panel of human tumour cell lines. Some of the analogues displayed powerful antiproliferative effects to certain human tumour cells, but all of them were devoid of any
The concise total synthesis of antitumor natural product (+)-pyrenolide D has been achieved in seven steps from readily available natural carbohydrate d-xylose with 10.8% overall yield. The key steps involved methylpropiolate-mediated stereoselective alkynylation on lactone carbonyl group and the tandem one-pot desilylation–spirolactonization.
The first total synthesis and revision of absolute stereochemistry of natural cytotoxic lactone cleistanolate
作者:Jelena Kesić、Ivana Kovačević、Mirjana Popsavin、Goran Benedeković、Marko V. Rodić、Vesna Kojić、Velimir Popsavin
DOI:10.1016/j.bioorg.2022.106073
日期:2022.11
applicable to d-ribose and d-xylose enabled the synthesis of cleistanolate putative structure, its five stereoisomers, and led to revision and confirmation of absolute stereochemistry of the natural product. Key steps of the synthesis included zinc-mediated THF ring-opening and stereoselective dihydroxylation under the Upjohn conditions. The first total synthesis of cleistanolate was completed in eight steps
were synthesized in several steps that included zinc-mediated THF ring opening, subsequent stereoselective olefination, and final Sharpless asymmetric dihydroxylation. In vitro antitumour activities of these compounds were evaluated against a panel of eight human tumour cell lines and one normal cell line. Some of compounds displayed powerful effects against tumour cells, but none of them were active