Triethylamine → 5-[(2R)-2-({(2R)-2-{[tert-butyl(dimethyl)silyl]oxy}-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl}amino)propyl]-N-(2-methoxybenzyl)-1H-indole-2-carboxamide

HRID 1760710Notes

Reaction equation

HRID 1760710 reaction equation
[Si:1]([O:8][C@H:9]([C:27]1[CH:32]=[CH:31][C:30]([OH:33])=[C:29]([CH2:34][OH:35])[CH:28]=1)[CH2:10][NH:11][C@H:12]([CH3:26])[CH2:13][C:14]1[CH:15]=[C:16]2[C:20](=[CH:21][CH:22]=1)[NH:19][C:18]([C:23]([OH:25])=O)=[CH:17]2)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].Cl.CN(C)CCCN=C=NCC.OC1C2N=NNC=2C=CC=1.C(N(CC)CC)C.[CH3:65][O:66][C:67]1[CH:74]=[CH:73][CH:72]=[CH:71][C:68]=1[CH2:69][NH2:70]>CN(C)C=O>[Si:1]([O:8][C@H:9]([C:27]1[CH:32]=[CH:31][C:30]([OH:33])=[C:29]([CH2:34][OH:35])[CH:28]=1)[CH2:10][NH:11][C@H:12]([CH3:26])[CH2:13][C:14]1[CH:15]=[C:16]2[C:20](=[CH:21][CH:22]=1)[NH:19][C:18]([C:23]([NH:70][CH2:69][C:68]1[CH:71]=[CH:72][CH:73]=[CH:74][C:67]=1[O:66][CH3:65])=[O:25])=[CH:17]2)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:2])[CH3:3]

Participants

7

Reactant 5

HCID 8471TriethylamineHCID 812922-MethoxybenzylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 129888305-[(2R)-2-({(2R)-2-{[tert-butyl(dimethyl)silyl]oxy}-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl}amino)propyl]-1H-indole-2-carboxylic acidHCID 178418300HCID 178418300, compound

Product 1

HCID 129888265-[(2R)-2-({(2R)-2-{[tert-butyl(dimethyl)silyl]oxy}-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl}amino)propyl]-N-(2-methoxybenzyl)-1H-indole-2-carboxamideYield 24.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 5-[(2R)-2-({(2R)-2-{[tert-butyl(dimethyl)silyl]oxy}-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl}amino)propyl]-1H-indole-2-carboxylic acid (Preparation 5, 0.25 g, 0.50 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (106 mg, 0.55 mmol), hydroxybenzotriazole (75 mg, 0.55 mmol) in N,N-dimethylformamide (5 ml) was treated with triethylamine (0.15 ml, 0.55 mmol) and 2-methoxybenzylamine (0.07 ml, 0.55 mmol) and the resulting suspension left to stir at room temperature under a nitrogen atmosphere for 18 hours. The solvent was removed in vacuo and the residue partitioned between dichloromethane (50 ml) and saturated aqueous sodium bicarbonate (20 ml). The organic phase was separated, dried (sodium sulphate) and the solvent removed in vacuo. The residue was purified by flash column chromatography on silica gel eluting with dichloromethane:methanol (95:5 changing to 90:10, by volume) to give the title compound as a colourless foam (76 mg).

Workup

  1. waitthe resulting suspension left
  2. customThe solvent was removed in vacuo
  3. customthe residue partitioned between dichloromethane (50 ml) and saturated aqueous sodium bicarbonate (20 ml)
  4. customThe organic phase was separated
  5. dry with materialdried (sodium sulphate)
  6. customthe solvent removed in vacuo
  7. customThe residue was purified by flash column chromatography on silica gel eluting with dichloromethane:methanol (95:5 changing to 90:10, by volume)

Sources & evidence

ORD record
ord-7d7ecb5832bb48babd7c2f01b8c5939e
Source dataset
uspto-grants-2005_01
Patent number
US06844362B2

Reaction notes

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