(2-Bromo-1,3-dioxo-indan-2-yl)-(triphenyl-λ5-phosphanylidene)-acetic acid methyl ester

ethyl 2-(2-bromo-1,3-dioxo-2,3-dihydro-1H-inden-2-yl)-2-(triphenylphosphoranylidene)acetate

phenyl isocyanate