1H-Pyrrol-1-yloxy, 3-((2-anthracenylamino)carbonyl)-2,5-dihydro-2,2,5,5-tetramethyl- 3-((2-Anthracenylamino)carbonyl)-2,5-dihydro-2,2,5,5-tetramethyl-1H-pyrrol-1-yloxy 64398-93-2