HCID 69213603, compound → HCID 44453366, compound

Participants

Reaction Steps

A solution of (R)-1-(3-amino-4-hydroxybenzyl)-3-[{N-(2-(tert-butoxycarbonylamino)-5-trifluoromethylbenzoyl)glycyl}amino]pyrrolidine (20 mg), prepared pursuant to methods of Example 808, in 4 N HCl in dioxane (2.0 mL) was stirred at room temperature overnight. After the solution was concentrated, the residue was dissolved in methanol, loaded onto Varian™ SCX column, washed with CH3OH, and eluted off using 2 N NH in CH3OH. Concentration and preparative TLC (SiO2, AcOEt/MeOH=4:1) afforded (R)-1-(3-amino-4-hydroxybenzyl)3-[{N-(2-Amino-5-trifluoromethylbenzoyl)glycyl}amino]pyrrolidine (Compound No. 2187) (9.6 mg, 59%): The purity was determined by RPLC/MS (86%); ESI/MS m/e 452.3 (M++H, C21H24F3N5O3).

Provenance & Evidence