for the following products
Zolmitriptan related compound d (20 mg) ((S)-ethyl 3-[2-(dimethylamino)ethyl]-5-[(2-oxooxazolidin-4-yl)methyl]-1H-indole-2-carboxylate) and (S)-3-(2-Dimethylaminoethyl)-5-(2-oxo-1,3-oxazolidin-4-ylmethyl)-1H-indol-2-carboxylic acid ethyl ester