tert-butyl 4-[6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]-3,6-dihydro-2H-pyridine-1-carboxylate → Tert-butyl 4-[6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]piperidine-1-carboxylate

HRID 57875Notes

Reaction equation

[CH3:1][C:2]1[N:7]=[C:6]([C:8]2[N:13]=[CH:12][C:11]3[CH:14]=[N:15][N:16]([C:17]4[N:22]=[C:21]([C:23]5[CH2:24][CH2:25][N:26]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:27][CH:28]=5)[CH:20]=[CH:19][CH:18]=4)[C:10]=3[CH:9]=2)[CH:5]=[N:4][CH:3]=1>[Pd].C(O)C>[CH3:1][C:2]1[N:7]=[C:6]([C:8]2[N:13]=[CH:12][C:11]3[CH:14]=[N:15][N:16]([C:17]4[N:22]=[C:21]([CH:23]5[CH2:28][CH2:27][N:26]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:25][CH2:24]5)[CH:20]=[CH:19][CH:18]=4)[C:10]=3[CH:9]=2)[CH:5]=[N:4][CH:3]=1

Participants

Conditions

Temperature: 40 °C

Procedure

A mixture of tert-butyl 4-[6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]-3,6-dihydro-2H-pyridine-1-carboxylate (125 mg, 0.266 mmol) and palladium on activated carbon, reduced 10% (28 mg, 0.0266 mmol) in ethanol 10.0 mL was stirred under H2 balloon at 40° C. 18 h. The reaction was filtered through celite and wash with MeOH. The crude product was carried to next step.

Workup

custom18 h
filtrationThe reaction was filtered through celite
washwash with MeOH

Sources & evidence

ORD record: ord-006e66199ade4683bfde18aa539ff568
Source dataset: uspto-grants-2016_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09434725B2

Reaction notes

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