Acetic Acid → di-tert-butyl 2,2'-((2-(2-((((1-(2-((3-iodophenyl)amino)-2-oxoethyl)-1H-imidazol-2-yl)methyl)(4-sulfamoylphenethyl)amino)methyl)-1H-imidazo 1-yl)acetyl)azanediyl)diacetate

HRID 1484608Notes

Reaction equation

HRID 1484608 reaction equation
[S:1]([C:5]1[CH:39]=[CH:38][C:8]([CH2:9][CH2:10][NH:11][CH2:12][C:13]2[N:14]([CH2:18][C:19]([N:21]([CH2:30][C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:22][C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])=[O:20])[CH:15]=[CH:16][N:17]=2)=[CH:7][CH:6]=1)(=[O:4])(=[O:3])[NH2:2].CC(O)=O.[CH:44]([C:46]1[N:47]([CH2:51][C:52]([NH:54][C:55]2[CH:60]=[CH:59][CH:58]=[C:57]([I:61])[CH:56]=2)=[O:53])[CH:48]=[CH:49][N:50]=1)=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>ClCCCl.O>[I:61][C:57]1[CH:56]=[C:55]([NH:54][C:52](=[O:53])[CH2:51][N:47]2[CH:48]=[CH:49][N:50]=[C:46]2[CH2:44][N:11]([CH2:12][C:13]2[N:14]([CH2:18][C:19]([N:21]([CH2:30][C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:22][C:23]([O:25][C:26]([CH3:27])([CH3:28])[CH3:29])=[O:24])=[O:20])[CH:15]=[CH:16][N:17]=2)[CH2:10][CH2:9][C:8]2[CH:38]=[CH:39][C:5]([S:1](=[O:3])(=[O:4])[NH2:2])=[CH:6][CH:7]=2)[CH:60]=[CH:59][CH:58]=1

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 5049666Sodium triacetoxyborohydrideHCID 71521810di-tert-butyl 2,2'-((2-(2-(((4-sulfamoylphenethyl)amino)methyl)-1H-imidazol-1-yl)acetyl)azanediyl)diacetateHCID 866927222-(2-formyl-1H-imidazol-1-yl)-N-(3-iodophenyl)acetamide

Product 1

HCID 86692723di-tert-butyl 2,2'-((2-(2-((((1-(2-((3-iodophenyl)amino)-2-oxoethyl)-1H-imidazol-2-yl)methyl)(4-sulfamoylphenethyl)amino)methyl)-1H-imidazo 1-yl)acetyl)azanediyl)diacetateYield 56.1%

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolventHCID 962WaterSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of di-tert-butyl 2,2′-((2-(2-(((4-sulfamoylphenethyl)amino)methyl)-1H-imidazol-1-yl)acetyl)azanediyl)diacetate (283 mg, 0.50 mmol), AcOH (0.10 mL) and 2-(2-formyl-1H-imidazol-1-yl)-N-(3-iodophenyl)acetamide (178 mg, 0.50 mmol) in DCE (20 mL) at 0° C. was added NaBH(OAc)3 (0.30 g, 1.5 mmol). The reaction mixture was stirred at 0° C. for 30 minutes and at room temperature for overnight and decomposed with water. The reaction mixture was extracted with DCM. The organic layer was dried and concentrated under reduced pressure. The residue was purified by biotage over silica gel eluting with DCM to 40% MeOH in DCM to afford di-tert-butyl 2,2′-((2-(2-((((1-(2-((3-iodophenyl)amino)-2-oxoethyl)-1H-imidazol-2-yl)methyl)(4-sulfamoylphenethyl)amino)methyl)-1H-imidazol-1-yl)acetyl)azanediyl)diacetate (254 mg, 56%).

Workup

  1. extractionThe reaction mixture was extracted with DCM
  2. customThe organic layer was dried
  3. concentrationconcentrated under reduced pressure
  4. customThe residue was purified by biotage over silica gel eluting with DCM to 40% MeOH in DCM

Sources & evidence

ORD record
ord-32cd70e620c44e8fba60ea917f50bed8
Source dataset
uspto-grants-2016_08
Patent number
US09422251B2

Reaction notes

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