Diisopropylethylamine → [5-(4,6-Dimethyl-pyrimidin-2-yl)-hexahydro-pyrrolo[3,4-c]pyrrol-2-yl]-(6-methyl-2-[1,2,3]triazol-2-yl-pyridin-3-yl)-methanone

To a pale yellow solution of 2-(4,6-dimethylpyrimidin-2-yl)octahydropyrrolo[3,4-c]pyrrole (Intermediate 23) (50 mg, 0.23 mmol) in 2 mL of DMF was added 6-methyl-2-[1,2,3]triazol-2-yl-nicotinic acid (Intermediate 70) (51 mg, 0.25 mmol) followed by HATU (131 mg, 0.34 mmol) and DIPEA (0.118 mL, 0.69 mmol). The resulting solution was allowed to stir at room temp for 1 h and turned progressively more intense yellow as the reaction continued. The reaction was monitored via LCMS and quenched with H2O once starting materials we no longer observed. The resulting biphasic mixture was extracted with EtOAc three times. The combined organic layers were washed with brine, dried with Na2SO4 and conc. into a pale yellow oil under reduced pressure. The yellow residue was purified via FCC using 5-50% 2M NH3/MeOH in DCM. Minor impurities remained so the material was further purified via HPLC 0-99% CH3N to give the desired product. MS (ESI) mass calcd. for C21H24N8O, 404.47; m/z found 405.3 [M+H]+. 1H NMR (400 MHz, CDCl3) 7.80 (s, 2H), 7.72 (d, J=7.7 Hz, 1H), 7.29-7.24 (m, 1H), 6.30 (s, 1H), 3.90-3.80 (m, 2H), 3.73-3.63 (m, 2H), 3.59 (dd, J=11.6, 5.3 Hz, 1H), 3.47 (dd, J=11.6, 3.7 Hz, 1H), 3.33 (s, 1H), 3.00 (ddd, J=38.4, 21.7, 7.2 Hz, 3H), 2.68 (s, 3H), 2.30 (s, 6H).

1. customquenched with H2O once starting materials we
2. extractionThe resulting biphasic mixture was extracted with EtOAc three times
3. washThe combined organic layers were washed with brine
4. dry with materialdried with Na2SO4 and conc. into a pale yellow oil under reduced pressure
5. customThe yellow residue was purified via FCC
6. customwas further purified via HPLC 0-99% CH3N

ORD record

ord-e9bc85d4e04e4cafbcd6b55024b81dfc

Source dataset

uspto-grants-2014_02

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08653263B2