2-Isopropoxy-3-methoxy-12,13-dihydro-8,10-dioxa-5-aza-cyclopenta[b]chrysene

2-(6-Isopropoxy-7-methoxy-1-oxo-1,2,3,4-tetrahydro-naphthalen-2-yl)-3,4,5-trimethoxy-benzoic acid