(4-(1-(1H-indol-3-yl)-3,4-dioxo-3,4-dihydro-naphthalen-2-ylmethyl)phenoxy)acetic acid tert-butyl ester
(4-(1-(1h-indol-3-yl)-3,4-dioxo-3,4-dihydro-naphthalen-2-ylmethyl)phenoxy)acetic acid tert-butyl ester