| 55% |
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; |
1.5 Step 5. (S)-1-(5-[2H,3H-[1,4]dioxino[2,3-b]pyridine-7-sulfonyl]-1H,2H,3H,4H,5H,6H-pyrrolo[3,4-c]pyrrol-2-yl)-3-hydroxy-2-phenylpropan-1-one (1)
Alternatively, Compound 1 can be synthesized using the procedure described here as Step 5. A solution of 7-((3,4,5,6-tetrahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)sulfonyl)-2,3-dihydro-[1,4]dioxino[2,3-b]pyridine (130.9 mg, 0.423 mmol) in DMF (2.5 ml) was cooled on an ice bath, then treated with (S)-3-hydroxy-2-phenylpropanoic acid (84.8 mg, 0.510 mmol), HATU (195.5 mg, 0.514 mmol), and DIEA (0.30 mL, 1.718 mmol) and stirred at ambient temperature overnight. The solution was diluted with EtOAc (20 mL), washed sequentially with water (20 mL) and brine (2×20 mL), dried (MgSO4), filtered, treated with silica gel, and evaporated under reduced pressure. The material was chromatographed by Biotage MPLC (10 g silica gel column, 0 to 5% MeOH in DCM) to provide a white, slightly sticky solid. The sample was readsorbed onto silica gel and chromatographed (10 g silica gel column, 0 to 100% EtOAc in hexanes) to provide (2S)-1-(5-[2H,3H-[1,4]dioxino[2,3-b]pyridine-7-sulfonyl]-1H,2H,3H,4H,5H,6H-pyrrolo[3,4-c]pyrrol-2-yl)-3-hydroxy-2-phenylpropan-1-one (106.5 mg, 0.233 mmol, 55% yield) as a white solid. |
| 55% |
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; Cooling with ice; |
1.5 Step 5.
(S)-1-(5-[2H, 3H-[1,4]dioxino[2,3-]pyridine-7-sulfonyl]-1H, 2H, 3H, 4H, 5H, 6H-pyrrolo[3,4-c]pyrrol-2-yl)-3-hydroxy-2-phenylpropan-1-one (1)
Alternatively, Compound 1 can be synthesized using the procedure described here as Step 5. A solution of 7-((3,4,5,6-tetrahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)sulfonyl)-2,3-dihydro-[1,4]dioxino[2,3-b]pyridine (130.9 mg, 0.423 mmol) in DMF (2.5 ml) was cooled on an ice bath, then treated with (S)-3-hydroxy-2-phenylpropanoic acid (84.8 mg, 0.510 mmol), HATU (195.5 mg, 0.514 mmol), and DIEA (0.30 mL, 1.718 mmol) and stirred at ambient temperature overnight. The solution was diluted with EtOAc (20 mL), washed sequentially with water (20 mL) and brine (2*20 mL), dried (MgSO4), filtered, treated with silica gel, and evaporated under reduced pressure. The material was chromatographed by Biotage 1MPLC (10 g silica gel column, 0 to 5% MeOH in DCM) to provide a white, slightly sticky solid. The sample was readsorbed onto silica gel and chromatographed (10 g silica gel column, 0 to 100% EtOAc in hexanes) to provide (25)-1-(5-[2H,3H-[1,4]dioxino[2,3-b]pyridine-7-sulfonyl]-1H,2H,3H,4H, 5H,6H-pyrrolo[3,4-c]pyrrol-2-yl)-3-hydroxy-2-phenylpropan-1-one (106.5 mg, 0.233 mmol, 55% yield) as a white solid. |
| 55% |
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; Cooling with ice; |
1.5 Step 5.
(S)-1-(5-[2H, 3H-[1,4]dioxino[2,3-]pyridine-7-sulfonyl]-1H, 2H, 3H, 4H, 5H, 6H-pyrrolo[3,4-c]pyrrol-2-yl)-3-hydroxy-2-phenylpropan-1-one (1)
Alternatively, Compound 1 can be synthesized using the procedure described here as Step 5. A solution of 7-((3,4,5,6-tetrahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)sulfonyl)-2,3-dihydro-[1,4]dioxino[2,3-b]pyridine (130.9 mg, 0.423 mmol) in DMF (2.5 ml) was cooled on an ice bath, then treated with (S)-3-hydroxy-2-phenylpropanoic acid (84.8 mg, 0.510 mmol), HATU (195.5 mg, 0.514 mmol), and DIEA (0.30 mL, 1.718 mmol) and stirred at ambient temperature overnight. The solution was diluted with EtOAc (20 mL), washed sequentially with water (20 mL) and brine (2*20 mL), dried (MgSO4), filtered, treated with silica gel, and evaporated under reduced pressure. The material was chromatographed by Biotage 1MPLC (10 g silica gel column, 0 to 5% MeOH in DCM) to provide a white, slightly sticky solid. The sample was readsorbed onto silica gel and chromatographed (10 g silica gel column, 0 to 100% EtOAc in hexanes) to provide (25)-1-(5-[2H,3H-[1,4]dioxino[2,3-b]pyridine-7-sulfonyl]-1H,2H,3H,4H, 5H,6H-pyrrolo[3,4-c]pyrrol-2-yl)-3-hydroxy-2-phenylpropan-1-one (106.5 mg, 0.233 mmol, 55% yield) as a white solid. |
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