1 244 [5-hydroxy-2-(4-hydroxyphenyl)-1-benzofuran-7-yl]acetonitrile 1.000 2 697 5-hydroxy-2-(4-hydroxyphenyl)-1-benzofuran-7-carbonitrile 0.857 3 397 2-(4-hydroxy-phenyl)benzofuran-5-ol 0.850 4 041 2-(3-fluoro-4-hydroxyphenyl)-7-vinyl-1,3-benzoxazol-5-ol 0.818