sidade de Sao Paulo (USP-Banco Interamericano de Desenvolvimento, BID), and The British Council for supporting the collaboration between Queen Mary and Westfield College and the Instituto de Química, USP. We wish to thank Mr. P. R. Haycock of the University of London Intercollegiate Research Service (ULIRS) in high field NMR at Queen Mary and Westfield College for measuring the and 13C spectra (Bruker WH-400).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.