Abstract
After a proofreading check, some experimental data were inconsistent with the supplementary information in the original publication [1]. Firstly, the carbon at position 9 of maeruabisindole C (compound 8) was a quaternary carbon, as evidenced by Figures S90 and S91 (the HSQC and HMBC spectra, respectively, of compound 8). Thus, the ?H regarding position 9 in Table 4 should be deleted. The correct version of Table 4 is given below. Secondly, in Section 3.3, the IR absorption peaks should be corrected to 3359, 3192, 2921, 2851, 2212, 1658, 1632, 1468, 1412, 1279, 1135, 702, and 632 cm?1, consistent with the IR spectrum of compound 8 (Figure S85), and the theoretical m/z of [M-H]? ion of compound 8 (calcd. for C20H12N3O2) should be corrected to 326.0935. Compound 8 (maeruabisindole C): dark green amorphous; UV ?max (MeOH) nm (log ?): 210 (4.07), 285(2.93), 355(2.21), 365(2.36); IR (ATR) ?max: 3359, 3192, 2921, 2851, 2212, 1658, 1632, 1468, 1412, 1279, 1135, 702, 632 cm?1; 1H and 13C-NMR data (acetone-d6): see Table 4; HR-ESI-MS m/z 326.0968 (calcd. for C20H12N3O2, 326.0935). The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated. ? 2024 by the authors.
