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. 2016 Nov 25;26(2):287–301. doi: 10.1007/s00044-016-1756-y

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© The Author(s) 2016

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 25 — Novel indole derivatives with significant antitubercular activity. 82: R ₁ = COOH, R ₂ = H; 83: R ₁ = COOC₂H₅, R ₂ = H; 84: R ₁ = COOC₂H₅, R ₂ = Cl; 85: R ₁ = COOC₂H₅, R ₂ = CH₃