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Acknowledgements
We thank Dr T Nakamura and Dr Y Hongo in RIKEN for the HRESIMS measurements and Ms H Aono and Ms N Morita in RIKEN for activity tests. We also thank Dr H Kusakabe in RIKEN for the collection of the strain. This work was supported in part by a Grant-in-Aid for Scientific Research (A) from the Ministry of Education, Culture, Sports and Technology of Japan, the Program for Promotion of Basic and Applied Researches for Innovations in Bio−oriented Industry and Health and Labour Sciences Research Grant. This work was also supported in part by grants of KRIBB Research Initiative Program and GRDC Program of NRF funded from Ministry of Science, ICT and Future Planning of Korea.
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Jang, JP., Nogawa, T., Uramoto, M. et al. RK-270A−C, new oxindole derivatives isolated from a microbial metabolites fraction library of Streptomyces sp. RK85-270. J Antibiot 68, 293–295 (2015). https://doi.org/10.1038/ja.2014.141
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DOI: https://doi.org/10.1038/ja.2014.141
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