List of Articles Oxyanthus speciosus DC Open Access Article Abstract Page Full-Text 1 - A new pyrrolidinyl-piperazine alkaloid derivative from Oxyanthus speciosus DC. (Rubiaceae) Judith Caroline Ngo Nyobe Désiré Mama Bikélé Matiedjie Becky Fodouop Emmanuel Mpondo Mpondo Jean Claude Ndom