Diisopropylethylamine → HCID 86726186, compound

HRID 1174215Notes

Reaction equation

HRID 1174215 reaction equation
[NH2:1][C@@H:2]([CH2:33][C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)[C@@H:3]([OH:32])[CH2:4][C@@H:5]([NH:19][C:20]([C@@H:22]([NH:27][C:28](=[O:31])[O:29][CH3:30])[C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][N:14]=2)=[CH:9][CH:8]=1.[C:40]([NH:47][C@H:48]([C:53](O)=[O:54])[C:49]([CH3:52])([CH3:51])[CH3:50])([O:42][C:43]([CH3:46])([CH3:45])[CH3:44])=[O:41].CCOP(ON1N=NC2C=CC=CC=2C1=O)(OCC)=O.C(N(CC)C(C)C)(C)C>C1COCC1>[CH3:30][O:29][C:28](=[O:31])[NH:27][C@@H:22]([C:23]([CH3:26])([CH3:25])[CH3:24])[C:20](=[O:21])[NH:19][C@@H:5]([CH2:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][N:14]=2)=[CH:9][CH:8]=1)[CH2:4][C@H:3]([OH:32])[C@H:2]([CH2:33][C:34]1[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=1)[NH:1][C:53](=[O:54])[C@H:48]([C:49]([CH3:52])([CH3:51])[CH3:50])[NH:47][C:40](=[O:41])[O:42][C:43]([CH3:45])([CH3:46])[CH3:44]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2734668(S)-2-((tert-Butoxycarbonyl)amino)-3,3-dimethylbutanoic acidHCID 42939953-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-oneHCID 16037867methyl (1S)-1-[({(1S,3S,4S)-4-amino-3-hydroxy-5-phenyl-1-[4-(2-pyridinyl)benzyl]pentyl}amino)carbonyl]-2,2-dimethylpropylcarbamate

Product 1

HCID 86726186HCID 86726186, compoundYield 83%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
25 °C

Procedure

A solution containing the product from Example 2C (0.050 g, 0.094 mmol) in THF (0.5 mL) was treated with Boc-L-tert-leucine (0.022 g, 0.096 mmol), DEPBT (0.042 g, 0.140 mmol), and N,N-diisopropylethylamine (0.08 mL, 0.459 mmol), stirred at 25° C. for 2 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. The residue was chromatographed on silica gel eluting with a gradient starting with 50-100% ethyl acetate/chloroform to give the title compound (0.058 g, 83% yield).

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
  6. customThe residue was chromatographed on silica gel eluting with a gradient

Sources & evidence

ORD record
ord-429a79e75b554169a3008cb2e54a3f54
Source dataset
uspto-grants-2010_11
Patent number
US07834043B2

Reaction notes

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