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. 2016 Aug 30;6:32213. doi: 10.1038/srep32213

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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The new spiro[pyrrolidine-3, 3´-oxindole] scaffold based compounds, 5a–o and other analogs were designed by drawing inspiration from natural products such as Chaetocochins G, compound 4 and Vinorelbine.