S-1 Supporting Information Isolation of Peribysins O, P, and Q from Periconia macrospinosa KT3863, and Configurational Reinvestigation of Peribysin E Diacetate from Periconia byssoides OUPS-N133 Kota Inose, † Kazuaki Tanaka † Takeshi Yamada, ‡ * Hiroyuki Koshino, § and Masaru Hashimoto † * † Faculty of Agriculture and Life Science, Hirosaki University, 3-Bunkyo-cho, Hirosaki, 036-8561, Japan ‡ Osaka University of Pharmaceutical Sciences, 4-20-1, Nasahara, Takatsuki, Osaka 569-1094, Japan § RIKEN Center for Sustainable Resource Science, Wako, 351-0198, Japan Index ESI-TOFMS spectrum of 1 S-3 IR spectrum of 1 (KBr) S-4 1 H-NMR spectra of 1 (500 MHz, CDCl 3 and CDCl 3 +D 2 O) S-5 13 C-NMR spectrum of 1 regular (125 MHz, CDCl 3 ), Y-axis enlarged (150 MHz, CDCl 3 ), and medium frequency region enlarged (125 MHz, CDCl 3 and CDCl 3 + D 2 O) S-7 2D NMR spectra of 1 (DQFCOSY, TOCSY, HSQC, and HMBC) S-11 The minor tautomer 2 emphasized 2D NMR spectra of 1 (DQFCOSY, TOCSY, HSQC, and HMBC) S-15 Difference NOE spectra of 1 ( irradiating H-6, H-9 and H 3 -15) S-29 X-ray crystal structure of 1 S-31 The atomic coordinates of 1 in crystal S-32 Summary of 1D 1 H (600 MHz), 13 C (150 MHz), and 2D TOCSY, DQF-COSY, HSQC, and HMBC (600 MHz) spectra of 2 S-33 ESI-TOFMS spectrum of 3 S-34 IR spectrum of 3 (film) S-35 1 H-NMR spectrum of 3 (500 MHz, CDCl 3 ) S-36 13 C-NMR spectrum of 3 (125 MHz, CDCl 3 ) S-37 2D NMR spectra of 3 (DQFCOSY, HSQC, HMBC, and NOESY) S-38 Difference NOE spectra of 3 (irradiating H-8, H-9, and H 3 -15) S-42