Datei:Ethanol 1H NMR.pngDescriptionEthanol 1H NMR.png English: Ethanol 1H NMR in CDCl3 (400 MHz) Date 20 June 2013, 12:07:26 Source Own work Author Mfomich Other versions English
Datei:Sunitinib step 3.pngOriginal patent text with NMR and MS data: "[00767] 5-Formyl-2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester (806 g), potassium hydroxide (548 g)
Datei:Sunitinib step 2.pngoriginal patent, with NMR data: "[00765] 3,5-Dimethyl-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl ester (2600 g) and ethanol (7800 mL) were stirred