Diisopropylethylamine → N1-{(1S,2R)-1-Benzyl-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-N3-methyl-5-(1,3-oxazol-2-yl)-N3-propylisophthalamide

HRID 14067Notes

Reaction equation

HRID 14067 reaction equation
[CH3:1][N:2]([CH2:19][CH2:20][CH3:21])[C:3]([C:5]1[CH:6]=[C:7]([CH:11]=[C:12]([C:14]2[O:15][CH:16]=[CH:17][N:18]=2)[CH:13]=1)[C:8]([OH:10])=O)=[O:4].C(N(C(C)C)CC)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.Cl.Cl.[NH2:57][C@@H:58]([CH2:72][C:73]1[CH:78]=[CH:77][CH:76]=[CH:75][CH:74]=1)[C@H:59]([OH:71])[CH2:60][NH:61][CH2:62][C:63]1[CH:68]=[CH:67][CH:66]=[C:65]([CH2:69][CH3:70])[CH:64]=1>CN(C=O)C>[CH2:72]([C@H:58]([NH:57][C:8](=[O:10])[C:7]1[CH:11]=[C:12]([C:14]2[O:15][CH:16]=[CH:17][N:18]=2)[CH:13]=[C:5]([C:3]([N:2]([CH3:1])[CH2:19][CH2:20][CH3:21])=[O:4])[CH:6]=1)[C@H:59]([OH:71])[CH2:60][NH:61][CH2:62][C:63]1[CH:68]=[CH:67][CH:66]=[C:65]([CH2:69][CH3:70])[CH:64]=1)[C:73]1[CH:74]=[CH:75][CH:76]=[CH:77][CH:78]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 21085840N-Methyl-5-oxazol-2-yl-N-propyl-isophthalamic acidHCID 57487283(2R,3S)-3-amino-1-[(3-ethylbenzyl)amino]-4-phenylbutan-2-ol dihydrochloride

Product 1

HCID 58802665N1-{(1S,2R)-1-Benzyl-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-N3-methyl-5-(1,3-oxazol-2-yl)-N3-propylisophthalamide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To 3-{[methyl(propyl)amino]carbonyl}-5-(1,3-oxazol-2-yl)benzoic acid (206 mg, 0.71 mmol) in DMF (5 mL) is added diisopropylethylamine (174 μL, 1.1 mmol), HATU (323 mg, 0.85 mmol), then (2R,3S)-3-amino-1-[(3-ethylbenzyl)amino]-4-phenylbutan-2-ol dihydrochloride prepared by the method of Example SP-272 (292 mg, 0.79 mmol). The reaction is stirred 4 h at room temperature. The reaction is partitioned between chloroform and water. The organic layer is washed with 1 N hydrochloric acid, saturated sodium bicarbonate, and brine, dried (sodium sulfate), filtered, and concentrated under reduced pressure. Purification by flash column chromatography (silica, 8% methanol/chloroform) gives the title compound. ESI MS m/z 569.3 [M+H]+.

Workup

  1. customThe reaction is partitioned between chloroform and water
  2. washThe organic layer is washed with 1 N hydrochloric acid, saturated sodium bicarbonate, and brine
  3. dry with materialdried (sodium sulfate)
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customPurification by flash column chromatography (silica, 8% methanol/chloroform)

Sources & evidence

ORD record
ord-aaf20ede3f774b73bf97db86b6d80b00
Source dataset
uspto-grants-2010_06
Patent number
US07727997B2

Reaction notes

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