Diisopropylethylamine → HCID 178446151, compound

HRID 1787804Notes

Reaction equation

HRID 1787804 reaction equation
[C:1]1([C:7]2[O:11][C:10]([CH2:12][CH2:13][C:14]([OH:16])=O)=[N:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:17]([N:22]1[C:30]2[N:29]=[CH:28][NH:27][C:26]=2[C:25](=[O:31])[NH:24]/[C:23]/1=[N:32]\[NH2:33])[CH2:18][CH2:19][CH2:20][CH3:21].F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C>CN(C)C1C=CN=CC=1.CN(C=O)C>[O:31]=[C:25]1[NH:24]/[C:23](=[N:32]\[NH:33][C:14](=[O:16])[CH2:13][CH2:12][C:10]2[O:11][C:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)=[N:8][N:9]=2)/[N:22]([CH2:17][CH2:18][CH2:19][CH2:20][CH3:21])[C:30]2[N:29]=[CH:28][NH:27][C:26]1=2

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 71306335-Phenyl-1,3,4-oxadiazole-2-propionic acidHCID 178446164HCID 178446164, compound

Product 1

HCID 178446151HCID 178446151, compoundYield 55.6%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

The mixture of 3-(5-phenyl-1,3,4-oxadiazol-2-yl)propanoic acid (500 mg, 20 mmol), (2E)-3-pentyl-3,7-dihydro-1H-purine-2,6-dione 2-hydrazone (480 mg, 0.0020 mol), benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (980 mg, 22 mmol), 4-dimethylaminopyridine (100 mg, 10 mmol), and N,N-diisopropylethylamine (0.73 mL, 42 mmol) in DMF (30 mL) was stirred at room temperature overnight. The mixture was quenched with water and extracted with ethyl acetate three times. The combined organic layers were washed by brine, dried over sodium sulfate, filtered and concentrated. The crude residue was purified by flash column chromatography to yield the desired product (485 mg, 48.5%). LCMS calculated for C21H25N8O3(M+H): 437.2; found 437.2.

Workup

  1. customThe mixture was quenched with water
  2. extractionextracted with ethyl acetate three times
  3. washThe combined organic layers were washed by brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude residue was purified by flash column chromatography

Sources & evidence

ORD record
ord-0f318cc8935a474185eba9878b8756d9
Source dataset
uspto-grants-2009_03
Patent number
US07511050B2

Reaction notes

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