3,4-Dimethoxyphenylboronic acid → HCID 21955980, compound

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A solution of N-[4-(2-amino-4-phenyl-thiazol-5-yl)-pyrimidin-2-yl]-N-(3-iodo-phenyl)-amine (300 mg, 0.64 mmol) and 3,4-dimethoxyphenylboronic acid (122 mg, 0.66 mmol) in dimethoxyethane (8 ml) and aqueous potassium carbonate (13 ml) are stirred in the presence of tetrakis triphenylphosphine palladium (15 mg) under a nitrogen atmosphere at reflux for 1 hour. After an aqueous work-up the residue is purified by chromatography (eluent: 2:1 mixture of ethyl acetate/hexane) to give the N-[4-(2-amino-4-phenyl-thiazol-5-yl)-pyrimidin-2-yl]-N-(3′,4′-dimethoxy-biphenyl-3-yl)-amine, m.p. 236–237° C.

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