1H-Indole-2-carboxylic acid, 4-(3-((1,1-dimethylethyl)amino)-2-hydroxypropoxy)- 27748-04-5 4-(3-tert-Butylamino-2-hydroxypropoxy)-2-carboxyindole Indole-2,4-carboxyaminopropoxy-N-tert-butyl