Triethylamine → (4S,5S)-4-(3,5-difluorobenzyl)-5-((2R,4S)-1-benzhydryl-4-hydroxypyrrolidin-2-yl)oxazolidin-2-one

HRID 20936Notes

Reaction equation

HRID 20936 reaction equation
F[C:2]1[CH:3]=[C:4]([CH:40]=[C:41](F)[CH:42]=1)[CH2:5][C@H:6]([C:25](N1[C@@H](CC2C=CC=CC=2)COC1=O)=O)[C@@H:7]([C@H:9]1[CH2:13][C@@H:12](OCC=C)CN1C(OC(C)(C)C)=O)O.[F:44][C:45]1[CH:46]=[C:47]([CH:68]=[C:69]([F:71])[CH:70]=1)[CH2:48][C@H:49]1[C@@H:53]([CH:54]2[CH2:59][O:58][CH2:57][CH2:56][N:55]2C(OC(C)(C)C)=O)[O:52][C:51](=[O:67])[NH:50]1.FC1C=C(C=C(F)C=1)C[C@@H]([C@@H](C1COCCN1C(OC(C)(C)C)=O)O)C(O)=O.C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=O)C=CC=CC=1.C(N(CC)CC)C>C1(C)C=CC=CC=1.C(OCC)(=O)C>[F:71][C:69]1[CH:68]=[C:47]([CH:46]=[C:45]([F:44])[CH:70]=1)[CH2:48][C@H:49]1[C@@H:53]([C@H:54]2[CH2:59][C@H:57]([OH:58])[CH2:56][N:55]2[CH:5]([C:4]2[CH:3]=[CH:2][CH:42]=[CH:41][CH:40]=2)[C:6]2[CH:7]=[CH:9][CH:13]=[CH:12][CH:25]=2)[O:52][C:51](=[O:67])[NH:50]1

Participants

8

Reactant 5

HCID 8471TriethylamineHCID 199401P,P-Diphenylphosphinic azideHCID 67315602tert-Butyl 3-((4S,5S)-4-(3,5-difluorobenzyl)-2-oxooxazolidin-5-yl)morpholine-4-carboxylateHCID 67315777(2S,3S)-2-(3,5-difluorobenzyl)-3-(4-(tert-butoxycarbonyl)morpholin-3-yl)-3-hydroxypropanoic acidHCID 67316359(2R,4R)-tert-butyl 2-((1S,2S)-2-(3,5-difluorobenzyl)-3-((S)-4-benzyl-2-oxooxazolidin-3-yl)-1-hydroxy-3-oxopropyl)-4-(allyloxy)pyrrolidine-1-carboxylate

Product 1

HCID 58608198(4S,5S)-4-(3,5-difluorobenzyl)-5-((2R,4S)-1-benzhydryl-4-hydroxypyrrolidin-2-yl)oxazolidin-2-one

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

Step D (5): tert-Butyl 3-((4S,5S)-4-(3,5-difluorobenzyl)-2-oxooxazolidin-5-yl)morpholine-4-carboxylate. To a solution of (2S,3S)-2-(3,5-difluorobenzyl)-3-(4-(tert-butoxycarbonyl)morpholin-3-yl)-3-hydroxypropanoic acid (step D (4)), 1.6 g, 4. mmol) in toluene (100 mL) was added diphenylphosphoryl azide (1.65 g, 6 mmol) and triethyl amine (1.01 g, 10 mmol). This reaction mixture was stirred at 80° C. for 4 h. Ethyl acetate (500 mL) was added. The mixture was washed with sodium carbonate solution, H2O, dried over Na2SO4 and concentrated. The crude mixture was purified by silica gel Flash Chromatography (0% to 20% to 30% to 50% to 70% EtOAc/Hexane step gradient) to give 800 mg of the title compound: MS (ESI) (M−H)− 397.12.

Workup

  1. washThe mixture was washed with sodium carbonate solution, H2O
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated
  4. customThe crude mixture was purified by silica gel Flash Chromatography (0% to 20% to 30% to 50% to 70% EtOAc/Hexane step gradient)

Sources & evidence

ORD record
ord-f65dc2f08e514655a0162d6999e02db9
Source dataset
uspto-grants-2010_06
Patent number
US07745470B2

Reaction notes

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