The synthesis and biological evaluation of alkyl and benzyl naphthyridinium analogs of eupolauridine as potential antimicrobial and cytotoxic agents
作者:Shahriyar Taghavi-Moghadam、Cecil D. Kwong、John A. Secrist、Shabana I. Khan、Alice M. Clark
DOI:10.1016/j.bmc.2016.02.028
日期:2016.12
Eupolauridine, an indenonaphthyridine alkaloid, has been previously reported by us to exhibit antifungal activity. This study describes the synthesis of new alkyl and benzyl naphthyridinium/pyridinium analogs of eupolauridine as potential antifungal agents. A majority of the analogs exhibited antifungal activity against opportunistic pathogens such as Candida albicans and Cryptococcus neoformans. Several
Sesquiterpenes and alkaloids from Cleistopholis patens
作者:Peter G. Waterman、Ilias Muhammad
DOI:10.1016/s0031-9422(00)80760-8
日期:——
Abstract The root bark of Cleistopholispatens collected in Ghana yielded two sesquiterpenes and five alkaloids. The sesquiterpenes have been characterised as the acyclic methyl-(−)-( trans )-( trans )-10,11-dihydroxyfarnesoate and its monocyclic derivative methyl-(+)-10-hydroxy-6,11-cyclofarnes-7(14)-enoate. The alkaloids were of the unusual aza-polycyclic and naphthyridine groups and included one
Synthesis of Eupolauridine and Its Benzo-Annulated Derivative
作者:Tat Hung Tong、Henry N.C. Wong
DOI:10.1080/00397919208020497
日期:1992.6
The unique diazafluoranthene alkaloid eupolauridine (1) was synthesized by a three-step route utilizing as the initial step the thermal rearrangement of the oxime O-crotyl ether 12, which afforded onychine (2). Bracher pyridine synthesis procedure subsequently converted 2 into 1. On the other hand, Friedlander reaction was employed for the synthesis of 3, which is a benzo-annulated derivative of eupolauridine (1).
BRACHER, FRANZ, ARCH. PHARM., 322,(1989) N, C. 293-294