Hydrochloric Acid → (3r)-n-[(3-{[3-{[(5-Chloro-2-thienyl)sulfonyl]amino}-4-(1-hydroxyethyl)-1h-indazol-1-yl]methyl}phenyl)methyl]-3-morpholinecarboxamide formate salt

Participants

Reaction Steps

DIPEA (0.059 mL, 0.336 mmol) was added to a stirring solution of (3R)-4-{[(1,1-dimethylethyl)oxy]carbonyl}-3-morpholinecarboxylic acid (19.41 mg, 0.084 mmol) in DCM (1 mL). HATU (35.1 mg, 0.092 mmol) was then added followed by N-[1-{[3-(aminomethyl)phenyl]methyl}-4-(1-hydroxyethyl)-1H-indazol-3-yl]-5-chloro-2-thiophenesulfonamide (for a preparation see Intermediate 77) (44 mg, 0.084 mmol) and stirred for an hour at room temp. The mixture was treated with 4M hydrogen chloride in dioxane (0.5 mL, 2 mmol) and the reaction stirred at room temperature for 0.5 h. The reaction mixture was passed through an SCX-2 cartridge, washed with methanol and then eluted using 2M ammonia in methanol. The appropriate ammoniacal fractions were concentrated under reduced pressure and the residue was dissolved in DMSO-Methanol (1:1) (1 mL) and purified by MDAP (Method A) to give the title compound (31.2 mg, 58%). LCMS (System C) RT=2.04 min, ES+ve m/z 590/592 (M+H)+.

Provenance & Evidence