Water → tert-butyl N-[(3S)-1-[3-methyl-6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]pyrazin-2-yl]-3-piperidyl]carbamate

HRID 57941Notes

Reaction equation

Cl[C:2]1[C:3]([N:24]2[CH2:29][CH2:28][CH2:27][C@H:26]([NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34])[CH2:25]2)=[N:4][C:5]([N:8]2[C:16]3[CH:15]=[C:14]([C:17]4[CH:22]=[N:21][CH:20]=[C:19]([CH3:23])[N:18]=4)[N:13]=[CH:12][C:11]=3[CH:10]=[N:9]2)=[CH:6][N:7]=1.[CH3:38]B1OB(C)OB(C)O1.C(=O)([O-])[O-].[Na+].[Na+].O>C(#N)C.C([O-])(=O)C.[K+].C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].ClCCl>[CH3:38][C:2]1[C:3]([N:24]2[CH2:29][CH2:28][CH2:27][C@H:26]([NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34])[CH2:25]2)=[N:4][C:5]([N:8]2[C:16]3[CH:15]=[C:14]([C:17]4[CH:22]=[N:21][CH:20]=[C:19]([CH3:23])[N:18]=4)[N:13]=[CH:12][C:11]=3[CH:10]=[N:9]2)=[CH:6][N:7]=1

Participants

Conditions

Temperature: 140 °C

Procedure

To a solution of tert-butyl N-[(3S)-1-[3-chloro-6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]pyrazin-2-yl]-3-piperidyl]carbamate (50 mg, 0.096 mmol), trimethylboroxine (36 mg, 0.29 mmol) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane adduct (8.0 mg, 0.0095 mmol) in acetonitrile 2.0 mL was added 1.00M sodium carbonate in water (0.19 mL, 0.19 mmol) and 1.00M potassium acetate in Water (0.19 mL, 0.19 mmol). The reaction mixture was heated in microwave at 140° C. for 40 min. The reaction was filtered through celite. The crude product was purified by flash chromatography (EtOAc/Heptane eluted at 80% EtOAc) to give the desired product 34 mg 70% yield. MS (ESI) m/z: 502.2.

Workup

filtrationThe reaction was filtered through celite
customThe crude product was purified by flash chromatography (EtOAc/Heptane eluted at 80% EtOAc)

Sources & evidence

ORD record: ord-103a7dba019443c980fb64f877f27d94
Source dataset: uspto-grants-2016_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09434725B2

Reaction notes

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