Wicek, Malgorzata; Kottke, Tim; Ligneau, Xavier; Schunack, Walter; Seifert, Roland; Stark, Holger; Handzlik, Jadwiga; Kiec-Kononowicz, Katarzyna Bioorganic and Medicinal Chemistry, 2011 , vol. 19, # 9 p. 2850 - 2858