trimethylsilyl 2-oxocyclopentane-1-sulfonate

2-(3,4-dimethoxybenzoyl)-4,5-dimethoxybenzoic acid

1-(3,4-dimethoxy-phenyl)-6,7-dimethoxy-1,2,3,4-tetrahydro-naphthalene-2,3-dicarboxylic acid

3-(2-oxoazepan-1-yl)propanenitrile

5-amino-2-(furan-2-yl)-4-hydroxyfuran-3-one