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

HRID 1174135Notes

Reaction equation

HRID 1174135 reaction equation
[CH3:1][O:2][C:3]([NH:5][C@@H:6]([C:10]([CH3:13])([CH3:12])[CH3:11])[C:7]([OH:9])=O)=[O:4].CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.CN1CCOCC1.[NH2:42][C@@H:43]([CH2:63][C:64]1[CH:69]=[CH:68][CH:67]=[CH:66][CH:65]=1)[C@@H:44]([OH:62])[CH2:45][C@@H:46]([NH:54][C:55](=[O:61])[O:56][C:57]([CH3:60])([CH3:59])[CH3:58])[CH2:47][C:48]1[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=1>CN(C=O)C>[CH2:63]([C@H:43]([NH:42][C:7]([C@@H:6]([NH:5][C:3](=[O:4])[O:2][CH3:1])[C:10]([CH3:13])([CH3:12])[CH3:11])=[O:9])[C@@H:44]([OH:62])[CH2:45][C@@H:46]([NH:54][C:55]([O:56][C:57]([CH3:58])([CH3:59])[CH3:60])=[O:61])[CH2:47][C:48]1[CH:49]=[CH:50][CH:51]=[CH:52][CH:53]=1)[C:64]1[CH:65]=[CH:66][CH:67]=[CH:68][CH:69]=1

Participants

7

Reactant 5

HCID 79724-MethylmorpholineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 11263950N-(Methoxycarbonyl)-L-tert-leucineHCID 119979265-tert-Butyloxycarbonylamino-2-amino-3-hydroxy-1,6-diphenylhexane, (2S,3S,5S)-

Product 1

HCID 86726172methyl (1S)-1-[({(1S,2S,4S)-1-benzyl-4-[(tert-butoxycarbonyl)amino]-2-hydroxy-5-phenylpentyl}amino)carbonyl]-2,2-dimethylpropylcarbamateYield 83%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Conditions

Temperature
25 °C

Procedure

A solution of the product from Example 1F (7.0 g, 37.0 mmol), EDAC (8.5 g, 44.3 mmol), HOBT (6.0 g, 44.4 mmol), and NMM (8.0 mL, 72.8 mmol) in DMF (30 mL) was stirred at 25° C. for 1 hour, treated with a solution of the product from Example 6A (14.15 g, 36.8 mmol) in DMF (30 mL), stirred at 25° C. for 16 hours, concentrated, and partitioned between ethyl acetate and saturated NaHCO3. The organic phase was washed with saturated NaHCO3 and brine, and concentrated. The solution of the residue in hot methanol (20 mL) and water (10 mL) was allowed to cool and stand for 16 hours. The solids were collected by filtration and rinsed several times with hexanes, followed by drying under vacuum to give the title compound (16.97 g, 77% yield).

Workup

  1. concentrationconcentrated
  2. custompartitioned between ethyl acetate and saturated NaHCO3
  3. washThe organic phase was washed with saturated NaHCO3 and brine
  4. concentrationconcentrated
  5. temperatureto cool
  6. waitstand for 16 hours
  7. filtrationThe solids were collected by filtration
  8. washrinsed several times with hexanes
  9. customby drying under vacuum

Sources & evidence

ORD record
ord-9b072a2feb884c6c82995db8b0a5c443
Source dataset
uspto-grants-2010_11
Patent number
US07834043B2

Reaction notes

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