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Typo in Image
editThe image contains a misspelling of "derivatives", and should be replaced with a corrected image. 38.111.35.2 (talk) 17:57, 13 March 2014 (UTC)
The image itself is wrong. The R1 "group" is IN THE RING instead of attached to the nitrogen atom that is supposed to be located at that ring position. Swfowkes (talk) 17:18, 8 October 2021 (UTC)