1: (1,1,1-tributylstannyl)benzene; 4-bromo-benzoic acid 10-methyl-anthracen-9-ylmethyl ester With tetrakis(triphenylphosphine) palladium(0) in toluene T=100°C; Stille coupling; 12 h; 2: With N-benzylmaleimide resin T=90°C; 3 h; 3: methanol With sodium methylate in tetrahydrofuran Further stages.;