Hydrochloric Acid → HCID 68008687, compound

Participants

Reaction Steps

To a solution of (2R,6S,13aS,14aR,16aS)-ethyl 6-(tert-butoxycarbonylamino)-12,12-difluoro-5,16-dioxo-2-(quinoxalin-2-yloxy)octadecahydrocyclopropa[e]pyrrolo [1,2-a][1,4]diazacyclopentadecine-14a-carboxylate (Example 1h, 14.6 mg, 0.022 mmol) in tetrahydrofuran (55.3 μl), ethanol (27.6 μl) and Water (27.6 μl) was added lithium hydroxide monohydrate (4.19 mg, 0.100 mmol). The reaction mixture was stirred at room temperature overnight, diluted with ethyl acetate and cooled to 0° C. The reaction mixture was neutralized with HCl (4 N in dioxane, 25 μl; diluted with ethyl acetate), stirred at room temperature and dried over anhydrous sodium sulfate. The mixture was filtered and evaporated under reduced pressure and the residue was purified by prep-TLC (elute with dichloromethane/methanol=5/1) to provide the title compound (2R,6S,13aS,14aR,16aS)-6-(tert-butoxycarbonylamino)-12,12-difluoro-5,16-dioxo-2-(quinoxalin-2-yloxy)octadecahydrocyclopropa[e]pyrrolo[1,2-a][1,4]diazacyclopentadecine-14a-carboxylic acid (11.04 mg, 0.017 mmol, 79% yield).

Provenance & Evidence