Formaldehyde → N-[4-[cyclohexyl(methyl)amino]butyl]-4-[[1H-imidazol-2-ylmethyl-[(1-methylimidazol-2-yl)methyl]amino]methyl]benzenesulfonamide

HRID 1173966Notes

Reaction equation

HRID 1173966 reaction equation
[CH:1]1([NH:7][CH2:8][CH2:9][CH2:10][CH2:11][NH:12][S:13]([C:16]2[CH:21]=[CH:20][C:19]([CH2:22][N:23]([CH2:31][C:32]3[NH:33][CH:34]=[CH:35][N:36]=3)[CH2:24][C:25]3[N:26]([CH3:30])[CH:27]=[CH:28][N:29]=3)=[CH:18][CH:17]=2)(=[O:15])=[O:14])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.C=O.[C:39]([BH3-])#N.[Na+].[OH-].[Na+]>CO.C(O)(=O)C>[CH:1]1([N:7]([CH3:39])[CH2:8][CH2:9][CH2:10][CH2:11][NH:12][S:13]([C:16]2[CH:17]=[CH:18][C:19]([CH2:22][N:23]([CH2:31][C:32]3[NH:33][CH:34]=[CH:35][N:36]=3)[CH2:24][C:25]3[N:26]([CH3:30])[CH:27]=[CH:28][N:29]=3)=[CH:20][CH:21]=2)(=[O:15])=[O:14])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

7

Reactant 4

HCID 712FormaldehydeHCID 14798Sodium HydroxideHCID 5003444Sodium cyanoborohydrideHCID 58801913N-[4-(cyclohexylamino)butyl]-4-[[1H-imidazol-2-ylmethyl-[(1-methylimidazol-2-yl)methyl]amino]methyl]benzenesulfonamide

Product 1

HCID 10346837N-[4-[cyclohexyl(methyl)amino]butyl]-4-[[1H-imidazol-2-ylmethyl-[(1-methylimidazol-2-yl)methyl]amino]methyl]benzenesulfonamide

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 887MethanolSolvent

Procedure

The compound (69.5 mg) obtained in Example 102-5 was treated with an anion-exchange resin (Amberlite IRA-410), and the treated product was dissolved in anhydrous methanol (2.7 ml). The solution was added with a 36% formaldehyde aqueous solution (0.025 ml). Subsequently, the solution was added with sodium cyanoborohydride (20.7 mg) and adjusted to pH 5 with acetic acid, followed by stirring at room temperature for 20 hours. After the reaction, the solution was added with a 1 mol/l sodium hydroxide aqueous solution (1.0 ml), followed by extraction with chloroform. The extract was dried with magnesium sulfate. The solvent was distilled off. Then, the residue was purified through silica gel column chromatography (chloroform/methanol) and treated with hydrochloric acid, thereby obtaining hydrochloride (34.8 mg) of the subject compound as a white solid.

Workup

  1. customAfter the reaction
  2. extractionfollowed by extraction with chloroform
  3. dry with materialThe extract was dried with magnesium sulfate
  4. distillationThe solvent was distilled off
  5. customThen, the residue was purified through silica gel column chromatography (chloroform/methanol)
  6. additiontreated with hydrochloric acid

Sources & evidence

ORD record
ord-20e472179deb4987b3b77538c3c8a4b2
Source dataset
uspto-grants-2010_11
Patent number
US07833991B2

Reaction notes

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