Isolation, Structure, and Absolute Stereochemistry of Platensimycin, A Broad Spectrum Antibiotic Discovered Using an Antisense Differential Sensitivity Strategy [J. Am. Chem. Soc. 2006, 128, 11916-11920]. Sheo B. Singh,* Hiranthi Jayasuriya, John G. Ondeyka, Kithsiri B. Herath, Chaowei Zhang, Deborah L. Zink, Nancy N. Tsou, Richard G. Ball, Angela Basilio, Olga Genilloud, Maria Teresa Diez, Francisca Vicente, Fernando Pelaez, Katherine Young, and Jun Wang Pages 11917 and 11919. It has come to our attention that, in this report, the structure of compound 3 was incorrect. Further examination of the structure using 1H,15N-HMBC (H-6 to N) led to the assignment of the correct structure as drawn below. We regret this mistake.
As a result of this structural correction, the second through fifth sentences in the fifth paragraph of the Results and Discussion section (fourth paragraph in column 2 on page 11917) should be corrected as follows: In acidic (0.1% TFA) aqueous CH3CN, the keto form (2) slowly converts to the cyclic form (3) reaching approximately 1:1 equilibrium in about 4 to 5 days. Both keto and cyclic forms were purified by HPLC and characterized. The cyclic form exists in two major conformations in a ratio of ∼2:1. No conversion was observed in organic solvents (e.g., pyridine). We acknowledge Prof. Phil Magnus for helpful discussions. JA069977F 10.1021/ja069977f Published on Web 11/09/2006
Dispersion and Separation of Small-Diameter SingleWalled Carbon Nanotubes [J. Am. Chem. Soc. 2006, 128, 12239-12242]. Yutaka Maeda, Makoto Kanda, Masahiro Hashimoto, Tadashi Hasegawa,* Shin-ichi Kimura, Yongfu Lian, Takatsugu Wakahara, Takeshi Akasaka,* Said Kazaoui, Nobutsugu Minami, Toshiya Okazaki, Yuhei Hayamizu, Kenji Hata, Jing Lu, and Shigeru Nagase Page 12241. The incorrect image was presented as Figure 6 in this paper. The correct Figure 6 is shown below.
Figure 6. Current vs voltage characteristic of CoMoCAT-SWNTs thin films.
JA067137V 10.1021/ja067137v Published on Web 11/09/2006
Molded, High Surface Area Polymer Electrolyte Membranes from Cured Liquid Precursors [J. Am. Chem. Soc. 2006, 128, 12963-12972]. Zhilian Zhou, Raymond N. Dominey, Jason P. Rolland, Benjamin W. Maynor, Ashish A. Pandya, and Joseph M. DeSimone* Page 12965. There was an error in the chemical structure of the fluorinated membrane as originally published in Figure 1 (bottom right). The corrected structure of the fluorinated membrane is shown below.
JA069976N 10.1021/ja069976n Published on Web 11/09/2006 10.1021/ja069977f CCC: $33.50 © 2006 American Chemical Society
J. AM. CHEM. SOC. 2006, 128, 15547
9
15547
