Benzaldehyde → {3-(benzylamino)-6-[(2R,6S)-2,6-dimethylmorpholin-4-yl]-7-fluoro-1,2-benzoxazol-5-yl}methanol

HRID 245523Notes

Reaction equation

HRID 245523 reaction equation
[CH:1](=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C([SiH](CC)CC)C.[NH2:16][C:17]1[C:21]2[CH:22]=[C:23]([CH2:35][OH:36])[C:24]([N:27]3[CH2:32][C@H:31]([CH3:33])[O:30][C@H:29]([CH3:34])[CH2:28]3)=[C:25]([F:26])[C:20]=2[O:19][N:18]=1>C(O)(C(F)(F)F)=O>[CH2:1]([NH:16][C:17]1[C:21]2[CH:22]=[C:23]([CH2:35][OH:36])[C:24]([N:27]3[CH2:32][C@H:31]([CH3:33])[O:30][C@H:29]([CH3:34])[CH2:28]3)=[C:25]([F:26])[C:20]=2[O:19][N:18]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 240BenzaldehydeHCID 12052TriethylsilaneHCID 67359017{3-amino-6-[(2R,6S)-2,6-dimethylmorpholin-4-yl]-7-fluoro-1,2-benzisoxazol-5-yl}methanol2×

Product 1

HCID 67356861{3-(benzylamino)-6-[(2R,6S)-2,6-dimethylmorpholin-4-yl]-7-fluoro-1,2-benzoxazol-5-yl}methanol

Reagents, catalysts & solvents 1

HCID 6422Trifluoroacetic acidSolvent

Procedure

To an ice cooled solution of benzaldehyde (0.08 mL, 2.54 mmol) in TFA (5 mL) was added triethylsilane (0.4 mL, 2.5 mmol) followed by {3-amino-6-[(2R,6S)-2,6-dimethylmorpholin-4-yl]-7-fluoro-1,2-benzisoxazol-5-yl}methanol (Intermediate 7, 250 mg, 0.84 mmol), and slowly allowed to reach room temperature and stirred for 12 hour. The reaction mixture was concentrated and the residue thus obtained was purified column chromatography using EtOAc in petether to give the title compound as solid. Yield: 70 mg (21%).

Workup

  1. customto reach room temperature
  2. concentrationThe reaction mixture was concentrated
  3. customthe residue thus obtained
  4. customwas purified column chromatography

Sources & evidence

ORD record
ord-b6262d6f6aba4d798c04da0999b73e5f
Source dataset
uspto-grants-2014_02
Patent number
US08658641B2

Reaction notes

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