Diisopropylamine → tert-butyl 4-(2-(1-(3-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-1H-benzo[d]imidazole-5-carbonyl)hydrazinecarbonyl)piperidine-1-carboxylate

HRID 2178309Notes

Reaction equation

HRID 2178309 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:19]=[CH:20][C:21]=1[O:22][CH2:23][C:24]1[CH:25]=[N:26][C:27]([O:30][CH3:31])=[CH:28][CH:29]=1)[CH2:6][N:7]1[C:11]2[CH:12]=[CH:13][C:14]([C:16](O)=[O:17])=[CH:15][C:10]=2[N:9]=[CH:8]1.[NH:32]([C:34]([CH:36]1[CH2:41][CH2:40][N:39]([C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43])[CH2:38][CH2:37]1)=[O:35])[NH2:33].F[P-](F)(F)(F)(F)F.CN(C(N(C)C)=[N+]1C2C(=NC=CC=2)[N+]([O-])=N1)C.C(NC(C)C)(C)C>ClCCl>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:19]=[CH:20][C:21]=1[O:22][CH2:23][C:24]1[CH:25]=[N:26][C:27]([O:30][CH3:31])=[CH:28][CH:29]=1)[CH2:6][N:7]1[C:11]2[CH:12]=[CH:13][C:14]([C:16]([NH:33][NH:32][C:34]([CH:36]3[CH2:41][CH2:40][N:39]([C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43])[CH2:38][CH2:37]3)=[O:35])=[O:17])=[CH:15][C:10]=2[N:9]=[CH:8]1

Participants

6

Reactant 4

HCID 7912DiisopropylamineHCID 22713165tert-Butyl 4-(hydrazinecarbonyl)piperidine-1-carboxylateHCID 1181143431-(3-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-1H-benzo[d]imidazole-5-carboxylic acidHCID 178484293HCID 178484293, compound

Product 1

HCID 118113999tert-butyl 4-(2-(1-(3-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-1H-benzo[d]imidazole-5-carbonyl)hydrazinecarbonyl)piperidine-1-carboxylateYield 65%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 1-(3-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-1H-benzo[d]imidazole-5-carboxylic acid (0.30 g, 0.72 mmol) in dichloromethane was added tert-butyl 4-(hydrazinecarbonyl)piperidine-1-carboxylate (0.24 g, 0.98 mmol), 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxid hexafluorophosphate (0.34 g, 0.89 mmol), diisopropylamine (0.19 g, 1.47 mmol). The resulting mixture was allowed to stir at room temperature. After 16 h, the mixture was concentrated and the residue was purified by silica gel chromatography (2% methanol/dichloromethane elute) to afford 0.30 g (65%) tert-butyl 4-(2-(1-(3-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-1H-benzo[d]imidazole-5-carbonyl)hydrazinecarbonyl)piperidine-1-carboxylate as a yellow solid.

Workup

  1. concentrationthe mixture was concentrated
  2. customthe residue was purified by silica gel chromatography (2% methanol/dichloromethane elute)

Sources & evidence

ORD record
ord-515040a5543b412fa9cef493effaac94
Source dataset
uspto-grants-2015_06
Patent number
US09067914B1

Reaction notes

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