Synthesis and Biological Evaluation of Tricyclic Guanidine Analogues of Batzelladine K for Antimalarial, Antileishmanial, Antibacterial, Antifungal, and Anti-HIV Activities
作者:Nafees Ahmed、Keyur G. Brahmbhatt、Shabana I. Khan、Melissa Jacob、Babu L. Tekwani、Sudeep Sabde、Debashis Mitra、Inder P. Singh、Ikhlas A. Khan、Kamlesh K. Bhutani
DOI:10.1111/cbdd.1427
日期:2013.4
Fifty analogues of batzelladine K were synthesized and evaluated for in vitro antimalarial (Plasmodium falciparum), antileishmanial (Leishmania donovani), antimicrobial (panel of bacteria and fungi), antiviral (HIV‐1) activities. Analogues 14h and 20l exhibited potential antimalarialactivity against chloroquine‐sensitive D6 strain with IC50 1.25 and 0.88 μm and chloroquine‐resistant W2 strain with
Revision of the Stereochemistry of Batzelladine F. Approaches to the Tricyclic Hydroxyguanidine Moiety of Batzelladines G, H, and I
作者:Barry B. Snider、Marina V. Busuyek
DOI:10.1021/np990312j
日期:1999.12.1
The polycyclic guanidine alkaloidsbatzelladines F-I isolated from a Jamaican sponge of the genus Batzella in 1997 are of potential value for the treatment of AIDS because they induce p56lck-CD4 dissociation at micromolar concentrations. Comparison of the spectral data for both the synthetic syn and anti tricyclic left-hand portions of batzelladine F establishes that the natural product has the syn
A short synthetic route to the tricyclic guanidinium core of the batzelladine alkaloids
作者:Gregory P. Black、Patrick J. Murphy、Nigel D.A. Walshe
DOI:10.1016/s0040-4020(98)00576-6
日期:1998.8
addition of guanidine to a series of bis-α,β-unsaturated ketones is reported leading to the formation of tricyclic guanidines, which are models of the naturally occurring batzelladinealkaloids. Nmr evidence is given in support of a new assignment for the relative stereochemistry of batzelladine F.