Sodium hydride → HCID 45111485, compound

Participants

Reaction Conditions

Reaction Steps

To an ice cold suspension of NaH (6 mg, 160 umol) in DMF (2.5 ml) under an argon atmosphere was added a solution of [2-(4-chloro-phenyl)-2H-indazol-3-yl]-cyclohexyl-amine (50 mg, 153 umol; example 11.1) in DMF (1 ml) within 10 min. The suspension was stirred for 1 h at 0° C. A solution of isocyanato-cyclopentane (34 mg, 306 umol; [4747-71-1]) in DMF (0.5 ml) was added within 5 min. The reaction mixture was stirred for 1 h at ambient temperature, poured onto ice water/1 N aqueous HCl solution/brine 1/1/1 and extracted two times with iPrOAc. The combined extracts were washed with brine and dried over Na2SO4. The solvent was removed under reduced pressure and the residue was purified by preparative thin layer chromatography (silica gel, iPrOAc/heptane) to give the title compound (20 mg, 47 umol; 21%) as yellow foam. MS: m/e=423.1 [M+H+].

Provenance & Evidence