InChI=1/C19H19NO3/c1-19(2,3)23-18(21)20-15-10-8-13(9-11-15)17-12-14-6-4-5-7-16(14)22-17/h4-12H,1-3H3,(H,20,21 carbamic acid, [4-(2-benzofuranyl)phenyl]-, 1,1-dimethylethyl ester tert-butyl [4-(1-benzofuran-2-yl)phenyl]carbamate