反应详情

5-(2-Fluoro-6-[1,2,3]triazol-2-yl-benzoyl)-hexahydro-pyrrolo[3,4-c]pyrrole-2-carboxylic acid tert-butyl ester (1.3 g, 3.21 mmol) was taken up in DCM (6.0 mL) and TFA (3.0 mL) was added. The mixture was allowed to stir at rt for 1 hr. Solvent was removed and then taken back up in DCM and basified with 1N aq. NaOH. The layers were separated. The aqueous was extracted 2 more time with DCM (and a small amount of MeOH). The organics were combined, dried (Na2SO4), filtered, and concentrated to provide the desired free base product, (2-fluoro-6-[1,2,3]triazol-2-yl-phenyl)-(hexahydro-pyrrolo[3,4-c]pyrrol-2-yl)-methanone, as a viscous/foamy residue that was found to be very hydroscopic (950.6 mg, 93.3%). MS (ESI): mass calculated for C15H16FN5O, 301.32, m/z found 302.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 7.90-7.73 (m, 3H), 7.54-7.42 (m, 1H), 7.19-7.10 (m, 1H), 3.85-2.65 (m, 10H).

1. customSolvent was removed
2. customThe layers were separated
3. extractionThe aqueous was extracted 2 more time with DCM (and a small amount of MeOH)
4. dry with materialdried (Na2SO4)
5. filtrationfiltered
6. concentrationconcentrated