Trityl chloride → HCID 178481901, compound

HRID 459619Notes

Reaction equation

HRID 459619 reaction equation
[NH2:1][C:2]1[N:6]([CH3:7])[N:5]=[CH:4][C:3]=1[NH:8][C:9](=[O:38])[C@@H:10]([NH:20][C:21]([NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[N:22][C:23](=[O:29])[O:24][C:25]([CH3:28])([CH3:27])[CH3:26])[CH2:11][NH:12][C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14].[C:39](Cl)([C:52]1[CH:57]=[CH:56][CH:55]=[CH:54][CH:53]=1)([C:46]1[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=1)[C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1.C(N(CC)CC)C>ClCCl.C(OCC)(=O)C>[C:16]([O:15][C:13]([NH:12][CH2:11][C@H:10]([NH:20]/[C:21](/[NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[N:22]/[C:23](=[O:29])[O:24][C:25]([CH3:28])([CH3:26])[CH3:27])[C:9]([NH:8][C:3]1[CH:4]=[N:5][N:6]([CH3:7])[C:2]=1[NH:1][C:39]([C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1)([C:52]1[CH:53]=[CH:54][CH:55]=[CH:56][CH:57]=1)[C:46]1[CH:47]=[CH:48][CH:49]=[CH:50][CH:51]=1)=[O:38])=[O:14])([CH3:19])([CH3:17])[CH3:18]

Participants

6

Reactant 3

HCID 6456Trityl chlorideHCID 8471TriethylamineHCID 178481900HCID 178481900, compound

Product 1

HCID 178481901HCID 178481901, compoundYield 90.3%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of di-tert-butyl {[((1S)-2-[(5-amino-1-methyl-1H-pyrazol-4-yl)amino]-1-{[(tert-butoxycarbonyl)amino]methyl}-2-oxoethyl)amino]methylylidene}biscarbamate (1.72 g) in dichloromethane (17 ml) was added trityl chloride (931 mg). To the mixture was added triethylamine (0.53 ml) dropwise. The mixture was stirred at room temperature for 1 hour. The reaction mixture was dissolved in ethyl acetate. The solution was washed with water and brine. The extract was dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography on silica gel to give di-tert-butyl {(Z)-[((1S)-{[(tert-butoxycarbonyl)amino]methyl}-2-{[1-methyl-5-(tritylamino)-1H-pyrazol-4-yl]amino}-2-oxoethyl)amino]methylylidene}biscarbamate (2.25 g).

Workup

  1. washThe solution was washed with water and brine
  2. dry with materialThe extract was dried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by column chromatography on silica gel

Sources & evidence

ORD record
ord-845b41218de84e71ab490becb48157d1
Source dataset
uspto-grants-2007_03
Patent number
US07192943B2

Reaction notes

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