1: With sodium hydroxide; tris-(dibenzylideneacetone)dipalladium(0); 2-(dicyclohexylphosphino)-2'-methylbiphenyl in ethanol; water T=78 - 80°C; Suzuki coupling; Inert atmosphere; 2: With hydrogenchloride; water in ethanol T=20°C; pH=3.4; Inert atmosphere;