Sulfated Meroterpenoids from the brazilian sponge callyspongia sp. are inhibitors of the antileishmaniasis target adenosine phosphoribosyl transferase - Gray, Christopher A; Lira, Simone Possedente de; Silva, Marcio; Pimenta, Eli F; Thiemann, Otávio Henrique; Oliva, Glaucius; Hajdu, Eduardo; Andersen, Raymond J; Berlinck, Roberto Gomes de Souza (Journal Organic Chemistry, 2006)