Triethylamine → 3-(4-{4-[(1H-benzoimidazol-2-ylamino)methyl]piperidin-1-yl}phenyl)-2-(2,4,6-trimethylbenzoylamino)propionic acid

HRID 1424320Notes

Reaction equation

HRID 1424320 reaction equation
FC(F)(F)C(O)=O.[NH:8]1[C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=2[N:10]=[C:9]1[NH:17][CH2:18][CH:19]1[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]1.B([C:28]1[CH:33]=[CH:32][C:31]([CH2:34][CH:35]([NH:39][C:40](=[O:50])[C:41]2[C:46]([CH3:47])=[CH:45][C:44]([CH3:48])=[CH:43][C:42]=2[CH3:49])[C:36]([OH:38])=[O:37])=[CH:30][CH:29]=1)(O)O.CCN(CC)CC>ClCCCl.CC([O-])=O.CC([O-])=O.[Cu+2]>[NH:8]1[C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=2[N:10]=[C:9]1[NH:17][CH2:18][CH:19]1[CH2:24][CH2:23][N:22]([C:28]2[CH:33]=[CH:32][C:31]([CH2:34][CH:35]([NH:39][C:40](=[O:50])[C:41]3[C:42]([CH3:49])=[CH:43][C:44]([CH3:48])=[CH:45][C:46]=3[CH3:47])[C:36]([OH:38])=[O:37])=[CH:30][CH:29]=2)[CH2:21][CH2:20]1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 576609483-(4-Boronophenyl)-2-(2,4,6-trimethylbenzoylamino)propionic acidHCID 69079613(1H-benzoimidazol-2-yl)piperidin-4-ylmethylamine trifluoroacetate

Product 1

HCID 248721893-(4-{4-[(1H-benzoimidazol-2-ylamino)methyl]piperidin-1-yl}phenyl)-2-(2,4,6-trimethylbenzoylamino)propionic acid

Reagents, catalysts & solvents 2

HCID 8895Cupric acetateCatalystHCID 111,2-DichloroethaneSolvent

Procedure

95 mg (0.207 mmol, calculated as bistrifluoroacetate salt) of crude piperidine derivative (19), 113 mg (0.621 mmol) Cu(OAc)2, 147 mg (0.415 mmol) boronic acid (6) and 1.72 ml (12.42 mmol) NEt3 were mixed in 10 ml DCE and stirred at room temperature for 20 h. The reaction mixture was concentrated under reduced pressure and the residue was dissolved in methanol and subsequently submitted to reversed phase HPLC purification using a water/acetonitrile gradient containing 0.1% TFA. The required fractions were collected and lyophilized to yield (20) as white solid.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. dissolutionthe residue was dissolved in methanol
  3. customphase HPLC purification
  4. additioncontaining 0.1% TFA
  5. customThe required fractions were collected

Sources & evidence

ORD record
ord-77abbd1afe25445aa857ff55be847c6d
Source dataset
uspto-grants-2015_01
Patent number
US08927534B2

Reaction notes

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