Piperidine → HCID 178452313, compound

HRID 1749876Notes

Reaction equation

[OH:1][C:2]1[CH:11]=[CH:10][C:5]2[C:6](=[O:9])[CH2:7][O:8][C:4]=2[C:3]=1[CH2:12][N:13]1[CH2:18][CH2:17][N:16]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:15][CH2:14]1.[F:26][C:27]([F:41])([F:40])[O:28][C:29]1[CH:30]=[C:31]2[C:35](=[CH:36][CH:37]=1)[NH:34][N:33]=[C:32]2[CH:38]=O.N1CCCCC1>CO>[OH:1][C:2]1[CH:11]=[CH:10][C:5]2[C:6](=[O:9])/[C:7](=[CH:38]/[C:32]3[C:31]4[C:35](=[CH:36][CH:37]=[C:29]([O:28][C:27]([F:40])([F:26])[F:41])[CH:30]=4)[NH:34][N:33]=3)/[O:8][C:4]=2[C:3]=1[CH2:12][N:13]1[CH2:14][CH2:15][N:16]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:17][CH2:18]1

Participants

Conditions

Temperature: 60 °C

Procedure

A solution of tert-butyl 4-[1-(6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylate (0.103 g, 0.295 mmol) in methanol (1.2 mL) was added with 5-(trifluoromethoxy)-1H-indazole-3-carbaldehyde (0.0680 g, 0.295 mmol), and piperidine (0.00251 g, 0.0295 mmol) at room temperature, and the mixture was stirred at 60° C. for 3 hours. The solvent was evaporated, and then the residue was purified by silica gel column chromatography (chloroform/methanol) to obtain tert-butyl (Z)-4-[(6-hydroxy-3-oxo-2-{[5-(trifluoromethoxy)-1H-indazol-3-yl]methylene}-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylate (0.0660 g, 40%).

Workup

customThe solvent was evaporated
customthe residue was purified by silica gel column chromatography (chloroform/methanol)

Sources & evidence

ORD record: ord-84fc5bc1415b4fd3b501e201c7d64d84
Source dataset: uspto-grants-2015_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09156827B2

Reaction notes

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