4-[2-[2-[[1-[(4-fluorophenyl)methyl]-4,6-dioxo-2-sulfanylidene-1,3-diazinan-5-ylidene]methyl]-1H-indol-3-yl]ethylamino]-4-oxobutanoic acid
4-[2-[2-[[1-[(4-fluorophenyl)methyl]-4,6-dioxo-2-sulfanylidene-1,3-diazinan-5-ylidene]methyl]-1h-indol-3-yl]ethylamino]-4-oxobutanoic acid