S1 Efficient Syntheses and Anti-Cancer Activity of Xenortides A-D Including ent/epi-Stereoisomers N. Esmati a , A. R. Maddirala a , N. Hussein b , H. Amawi c , A. K. Tiwari b and P. R. Andreana* a a Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio, USA 43606. b Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Ohio, USA 43614 c Department of Pharmacy Practice, College of Pharmacy, Yarmouk University, Irbid, Jordan 21163 Table of Content 1 H NMR, 13 C NMR, optical rotation, and mass spectral data for Xenortides A-D and their ent/epi-stereoisomers…..S2-S50 Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry. This journal is © The Royal Society of Chemistry 2018