1,2-Dichloroethane → N1-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl)-5-(1,3-oxazol-2-yl)-N3,N3-dipropylisophthalamide

HRID 14295Notes

Reaction equation

HRID 14295 reaction equation
[CH2:1]([N:4]([CH2:21][CH2:22][CH3:23])[C:5]([C:7]1[CH:8]=[C:9]([CH:13]=[C:14]([C:16]2[O:17][CH:18]=[CH:19][N:20]=2)[CH:15]=1)[C:10]([OH:12])=O)=[O:6])[CH2:2][CH3:3].Cl.Cl.[NH2:26][C@@H:27]([CH2:41][C:42]1[CH:47]=[C:46]([F:48])[CH:45]=[C:44]([F:49])[CH:43]=1)[C@H:28]([OH:40])[CH2:29][NH:30][CH2:31][C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([CH2:38][CH3:39])[CH:33]=1.C1C=CC2N(O)N=NC=2C=1.CN1CCOCC1.C(Cl)CCl>CN(C)C=O.O>[F:48][C:46]1[CH:47]=[C:42]([CH:43]=[C:44]([F:49])[CH:45]=1)[CH2:41][C@H:27]([NH:26][C:10](=[O:12])[C:9]1[CH:13]=[C:14]([C:16]2[O:17][CH:18]=[CH:19][N:20]=2)[CH:15]=[C:7]([C:5]([N:4]([CH2:21][CH2:22][CH3:23])[CH2:1][CH2:2][CH3:3])=[O:6])[CH:8]=1)[C@H:28]([OH:40])[CH2:29][NH:30][CH2:31][C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([CH2:38][CH3:39])[CH:33]=1

Participants

8

Reactant 5

HCID 111,2-DichloroethaneHCID 79724-MethylmorpholineHCID 757711-HydroxybenzotriazoleHCID 210628933-(Dipropylcarbamoyl)-5-(oxazol-2-yl)benzoic acidHCID 57487281(2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol dihydrochloride

Product 1

HCID 9895520N1-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl)-5-(1,3-oxazol-2-yl)-N3,N3-dipropylisophthalamide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A solution of 3-[(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoic acid (133 mg, 0.42 mmol), (2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol dihydrochloride (171 mg, 0.42 mmol), HOBt (57 mg, 0.42 mmol), and N-methylmorpholine (148 μL, 1.3 mmol) was stirred in dimethylformamide (2 mL) for 15 min. EDC (130 mg, 0.75 mmol) was added and the reaction mixture was stirred overnight. The reaction mixture was diluted with water, and extracted with ethyl acetate (3×25 mL). The organic layer was washed with 1 M hydrochloric acid (25 mL), saturated sodium bicarbonate (25 mL), saturated sodium chloride, dried (sodium sulfate), and concentrated under reduced pressure. Purification by flash column chromatography (silica, 1:9 methanol/chloroform) provided N1-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-5-(1,3-oxazol-2-yl)-N3,N3-dipropylisophthalamide (62 rng): mp 65-67° C.; 1H NMR (500 MHz, CDCl3) δ 8.21 (br s, 1H), 8.15 (s, 2H), 7.69 (s, 1H), 7.60 (s, 1H), 7.25 (t, J=8 Hz, 1H), 7.19-7.17 (m, 3H), 7.10 (d, J=8 Hz, 1H), 6.96 (d, J=8 Hz, 2H), 6.60 (t, J=8 Hz, 1H), 4.27 (d, J=8 Hz, 1H), 3.88-3.80 (m, 3H), 3.53 (br s, 2H), 3.44 (br s, 2H), 3.09-3.01 (m, 4H), 2.85-2.82 (m, 2H), 2.62 (t, J=8 Hz, 2H), 1.74 (br s, 2H), 1.45 (br s, 2H), 1.21 (t, J=8 Hz, 3H), 1.03 (t, J=7 Hz, 3H), 0.66 (t, J=7 Hz, 3H); APCI MS m/z 633 [M+H]+

Workup

  1. extractionextracted with ethyl acetate (3×25 mL)
  2. washThe organic layer was washed with 1 M hydrochloric acid (25 mL), saturated sodium bicarbonate (25 mL), saturated sodium chloride
  3. dry with materialdried (sodium sulfate)
  4. concentrationconcentrated under reduced pressure
  5. customPurification by flash column chromatography (silica, 1:9 methanol/chloroform)

Sources & evidence

ORD record
ord-9cb76be779f541079ec3b082ce861a4f
Source dataset
uspto-grants-2010_06
Patent number
US07727997B2

Reaction notes

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