Diisopropylethylamine → HCID 89691015, compound

Participants

Reaction Steps

To a stirred solution of (R)-4-((2-chloro-5-(5-(3-hydroxypyrrolidine-1-carbonyl)-1,3,4-thiadiazol-2-yl)pyridin-4-yl)amino)benzoic acid (15) (150 mg, 0.336 mmol) in DMF (10 mL), DIPEA (1.682 mmol, 5 equiv.), methanamine HCl (3.36 mmol, 10 equiv.) and HATU (0.673 mmol, 2 equiv.) were added at room temperature. The reaction mixture was allowed to stir overnight at ambient temperature. The reaction mixture was evaporated to remove excess of DMF. The residue obtained was then diluted with water and extracted using EtOAc. The organic layer was dried over Na2SO4, filtered and evaporated to get crude compound. The crude compound was purified by column chromatography through silica gel and MeOH: DCM as eluent to isolate the desired compound, (R)-4-((2-chloro-5-(5-(3-hydroxypyrrolidine-1-carbonyl)-1,3,4-thiadiazol-2-yl)pyridin-4-yl)amino)-N-methylbenzamide (16). LC/MS: Acquity BEH C18 2.1×50 mm, 1.8 micron; Solvent A=0.1% TFA in water; Solvent B=0.1% TFA in ACN; gradient 0-100% B over 2 min; retention time: 0.71 min; LCMS (ES-API), m/z 459.63 (M+H).

Provenance & Evidence