4-Methylmorpholine → N-{[4-((2R,3R)-1-(4-fluorophenyl)-3-{[2-(4-fluorophenyl)-2-hydroxyethyl]thio)-4-oxoazetidin-2-yl)phenoxy]acetyl}glycyl-3-methyl-D-isovaline

HRID 254051Notes

Reaction equation

HRID 254051 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:11](=[O:12])[C@H:10]([S:13][CH2:14][C:15]([C:17]3[CH:22]=[CH:21][C:20]([F:23])=[CH:19][CH:18]=3)=[O:16])[C@H:9]2[C:24]2[CH:38]=[CH:37][C:27]([O:28][CH2:29][C:30]([NH:32][CH2:33][C:34](O)=[O:35])=[O:31])=[CH:26][CH:25]=2)=[CH:4][CH:3]=1.CN1CCOCC1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.[CH3:68][CH:69]([CH3:76])[C@:70]([C:73]([OH:75])=[O:74])([CH3:72])[NH2:71].[BH4-].[Na+]>CN(C=O)C.CO.O>[F:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[C:11](=[O:12])[C@H:10]([S:13][CH2:14][CH:15]([C:17]3[CH:18]=[CH:19][C:20]([F:23])=[CH:21][CH:22]=3)[OH:16])[C@H:9]2[C:24]2[CH:25]=[CH:26][C:27]([O:28][CH2:29][C:30]([NH:32][CH2:33][C:34]([NH:71][C@@:70]([C:73]([OH:75])=[O:74])([CH3:72])[CH:69]([CH3:76])[CH3:68])=[O:35])=[O:31])=[CH:37][CH:38]=2)=[CH:6][CH:7]=1

Participants

9

Reactant 5

HCID 79724-MethylmorpholineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 4311764Sodium borohydrideHCID 7408715(S)-2-amino-2,3-dimethylbutanoic acidHCID 66842760N-{[4-((2R,3R)-1-(4-Fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio)-4-oxoazetidin-2-yl)phenoxy]acetyl}glycine

Product 1

HCID 66842924N-{[4-((2R,3R)-1-(4-fluorophenyl)-3-{[2-(4-fluorophenyl)-2-hydroxyethyl]thio)-4-oxoazetidin-2-yl)phenoxy]acetyl}glycyl-3-methyl-D-isovaline

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

N-{[4-((2R,3R)-1-(4-Fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio}-4-oxoazetidin-2-yl)phenoxy]acetyl}glycine (0.035 g, 0.065 mmol) was dissolved in DMF (2 ml) at 30° C. N-Methyl morpholine (0.026 g, 0.259 mmol) and TBTU (0.027 g, 0.084 mmol) were added. After 1 h, 3-methyl-D-isovaline (0.013 g, 0.097 mmol) was added. The mixture was stirred for 2 h and water (1 ml) was added. After 10 minutes, MeOH (2 ml) and NaBH4 (0.037 g, 0.971 mmol) were added. Full conversion to the corresponding alcohol was obtained after 5 minutes and 0.1M NH4OAc buffer (2 ml) was added. The mixture was purified by preparative HPLC (eluent 0-50% CH3CN in 0.1M NH4OAc buffer). Freeze-drying of the pure fractions afforded the title compound (0.020 g, 47%) as a colourless solid. M/z: 654.0 (M−1). 1H NMR [(CD3)2SO), 400 MHz] δ 0.79 (d, 3H), 0.87 (d, 3H), 1.29 (s, 3H), 2.00-2.07 (m, 1H), 2.84-2.94 (m, 2H), 3.73 (d, 2H), 4.25-4.28 (m, 1H), 4.51 (s, 2H), 4.69-4.75 (m, 1H), 5.03-5.06 (m, 1H), 6.97-7.37 (m, 12H), 7.82 (s, 1H), 8.24 (t, 1H).

Workup

  1. waitAfter 10 minutes

Sources & evidence

ORD record
ord-a5d2503708654e8ba611d934357b4461
Source dataset
uspto-grants-2011_01
Patent number
US07871998B2

Reaction notes

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