1 Supporting Information to: Anti-HIV-1 Constituents from Leaves and Twigs of Cratoxylum arborescens Vichai Reutrakul 1 * Waraporn Chanakul 1 Manat Pohmakotr 1 Thaworn Jaipetch 1 Chalobon Yoosook 2 Jittra Kasisit 2 Chanita Napaswat 2 Thawatchai Santisuk 3 Samran Prabpai 1 Palangpon Kongsaeree 1 Patoomratana Tuchinda 1 * Affiliation: 1 Department of Chemistry, Faculty of Science, Mahidol University, Bangkok, Thailand 2 Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand 3 The Forest Herbarium, Royal Forest Department, Bangkok, Thailand Correspondence: Prof. Vichai Reutrakul and Dr. Patoomratana Tuchinda Department of Chemistry Faculty of Science Mahidol University Bangkok 10400 Thailand Phone: +66-2-2015152 Fax: +66-2-6445126 E-mail: scvrt@mahidol.ac.th and scptc@mahidol.ac.th © Georg Thieme Verlag KG · DOI 10.1055/s-2006-951725 · Planta Med 2006; 72: e383–e389 · Reutrakul V et al.