Trisodium Phosphate → HCID 60098079, compound

Participants

Reaction Steps

To (4-{2-[(3-amino-4-chlorophenyl)amino]-1-methylbenzimidazol-5-yloxy}-(2-pyridyl))-N-methylcarboxamide in chloroform was added 4-chlorobutanoylchloride (1.5 eq) and sodium phosphate (3 eq) and stir for 2 hours. Acylation was checked by HPLC/MS. The mixture was partitioned between methylene chloride and water. The organic layer was dried with sodium sulfate and concentrated. The crude was taken in tetrahydrofuran and Potassiumbis(trimethylsilyl)amide (2 eq) was added to it and the mixture was heated at 100 C for 16 h. The mixture was concentrated and partitioned between ethyl acetate and water. The organic layer was dried and concentrated to give 4-[(2-{[4-chloro-3-(2-oxopyrrolidin-1-yl)phenyl]amino}-1-methyl-1H-benzimidazol-5-yl)oxy]-N-methylpyridine-2-carboxamide.

Provenance & Evidence