Diisopropylethylamine → methyl (1S,2S)-1-[({(1S,2S,4S)-1-benzyl-4-[(tert-butoxycarbonyl)amino]-2-hydroxy-5-phenylpentyl}amino)carbonyl]-2-methylbutylcarbamate

HRID 1174138Notes

Reaction equation

HRID 1174138 reaction equation
[NH2:1][C@@H:2]([CH2:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1)[C@@H:3]([OH:21])[CH2:4][C@@H:5]([NH:13][C:14](=[O:20])[O:15][C:16]([CH3:19])([CH3:18])[CH3:17])[CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.[CH3:29][O:30][C:31]([NH:33][C@@H:34]([C@@H:38]([CH3:41])[CH2:39][CH3:40])[C:35](O)=[O:36])=[O:32].CCOP(ON1N=NC2C=CC=CC=2C1=O)(OCC)=O.C(N(CC)C(C)C)(C)C>C1COCC1>[CH2:22]([C@H:2]([NH:1][C:35]([C@@H:34]([NH:33][C:31](=[O:32])[O:30][CH3:29])[C@@H:38]([CH3:41])[CH2:39][CH3:40])=[O:36])[C@@H:3]([OH:21])[CH2:4][C@@H:5]([NH:13][C:14]([O:15][C:16]([CH3:19])([CH3:17])[CH3:18])=[O:20])[CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 42939953-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-oneHCID 119979265-tert-Butyloxycarbonylamino-2-amino-3-hydroxy-1,6-diphenylhexane, (2S,3S,5S)-HCID 28378062L-Isoleucine, N-(methoxycarbonyl)-

Product 1

HCID 86726174methyl (1S,2S)-1-[({(1S,2S,4S)-1-benzyl-4-[(tert-butoxycarbonyl)amino]-2-hydroxy-5-phenylpentyl}amino)carbonyl]-2-methylbutylcarbamate

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
25 °C

Procedure

A solution of the product from Example 6A (0.50 g, 1.30 mmol) in THF (13 mL) was treated with the product from Example 5A (0.30 g, 1.59 mmol), DEPBT (0.45 g, 1.50 mmol), and N,N-diisopropylethylamine (1.1 mL, 6.31 mmol), stirred at 25° C. for 16 hours, and partitioned between ethyl acetate and 10% Na2CO3 solution. The organic phase was washed with additional 10% Na2CO3 solution and brine, dried over MgSO4, filtered and concentrated to give the title compound, used without further purification.

Workup

  1. custompartitioned between ethyl acetate and 10% Na2CO3 solution
  2. washThe organic phase was washed with additional 10% Na2CO3 solution and brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-4a4e04c4fbcb4097b89a252dcbc228bc
Source dataset
uspto-grants-2010_11
Patent number
US07834043B2

Reaction notes

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