2-[2-(Bis-tert-butoxycarbonylmethyl-amino)-ethoxy]-5-chloro-benzoic acid 2-{2-[bis(2-tert-butoxy-2-oxoethyl)amino]ethoxy}-5-chlorobenzoic acid InChI=1/C21H30ClNO7/c1-20(2,3)29-17(24)12-23(13-18(25)30-21(4,5)6)9-10-28-16-8-7-14(22)11-15(16)19(26)27/h7-8,11H,9-10,12-13H2,1-6H3,(H,26,27 benzoic acid, 2-[2-[bis[2-(1,1-dimethylethoxy)-2-oxoethyl]amino]ethoxy]-5-chloro-