Diisopropylethylamine → HCID 6950968, compound

HRID 2245984Notes

Reaction equation

HRID 2245984 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C@@H:12]([CH3:16])[C:13](O)=[O:14])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[NH4+].[NH4+].F[P-](F)(F)(F)(F)F.[N:30]1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C>C(Cl)Cl>[NH2:30][C:13](=[O:14])[C@@H:12]([NH:11][C:9](=[O:10])[O:8][CH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[CH3:16]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 517111Ammonium CarbonateHCID 736104N-carbobenzyloxyalanine

Product 1

HCID 6950968HCID 6950968, compoundYield 121.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of (2S)-2-[(benzyloxy)carbonyl]aminopropanoic acid (0.5 g, 0.002 mol), ammonium carbonate (0.43 g, 0.0045 mol), benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate (1.2 g, 0.0027 mol), N,N-diisopropylethylamine (980 μL, 0.0056 mol) in methylene chloride (3 mL) was stirred at RT overnight. The mixture was quenched with saturated NaHCO3 solution, and extracted with DCM. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was flash chromatographed on a silica gel column to afford the desired product (0.54 g). Analytical LCMS: (M+H)+=223.1.

Workup

  1. customThe mixture was quenched with saturated NaHCO3 solution
  2. extractionextracted with DCM
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customchromatographed on a silica gel column

Sources & evidence

ORD record
ord-7528d0b9b9c2438784fe4bd50f40e48c
Source dataset
uspto-grants-2010_03
Patent number
US07683060B2

Reaction notes

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