1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) → {4-[2-(2-Fluoro-5-trifluoromethyl-phenyl)-[1,8]naphthyridin-4-ylamino]-pyridin-3-yl}-methanol

Participants

Reaction Steps

150 mg 4-chloro-2-(2-fluoro-5-trifluoromethyl-phenyl)-[1,8]naphthyridine and 57 mg 4-amino-3-hydroxymethylpyridine in 6 ml dioxane containing 299 mg Cs2CO3, 8 mg Pd2 (dba)3 and 10 mg xantphos were incubated under argon gas at 90° C. for 18 hrs. After evaporation to dryness the crude sample was flashed on SiO2 with a MeOH gradient in DCM. A pooled fraction was evaporated to give 59 mg product {4-[2-(2-fluoro-5-trifluoromethyl-phenyl)-[1,8]naphthyridin-4-ylamino]-pyridin-3-yl}-methanol with Rt˜1.48 min and correct mass found M+H˜415.

Provenance & Evidence