1 WH6 2-[(1r)-2-carboxy-1-(naphthalen-1-ylmethyl)ethyl]-1,3-dioxo-2,3-dihydro-1h-isoindole-5-carboxylic acid 1.000 2 23C 2-[(1r)-1-carboxy-2-naphthalen-1-ylethyl]-1,3-dioxo-2,3-dihydro-1h-isoindole-5-carboxylic acid 0.844