Studies on reductive alkylation: Synthesis of Wieland-Miescher ketone analogues bearing an oxygenated angular substituent
作者:L.N. Mander、R.J. Hamilton
DOI:10.1016/s0040-4039(01)82080-3
日期:1981.1
Wieland-Miescheranalogues 2a and 2b have been prepared in good yield by a sequence utilising reductive alkylation of the dihydro aromatic ester enolate 7d, which functions as a synthetic equivalent of the dioxo ester 5 anion; these analogues are envisaged as intermediates in a projected synthesis of bruceantin.
Function-Oriented Synthesis of Pentacyclic Triterpenoids and Discovery of an ent-Estrane as a Natural Product-Inspired Androgen Receptor Antagonist
作者:Zachary D. Stempel、Hanna S. Radomska、Christopher C. Coss、Glenn C. Micalizio
DOI:10.1021/acs.orglett.4c00697
日期:2024.4.19
and biology, the challenges associated with their asymmetric synthesis contribute to the current reality that medicinal exploration in the area is largely constrained to natural product derivatization. To address this deficiency, a function-orientedsynthesis of pentacyclic triterpenoids was pursued. Overall, we report a divergent synthesis of 26-norgermanicol and 26-norlupeol and we have identified