Methanamine, N-methoxy-, hydrochloride (1:1) → HCID 87442638, compound

HRID 384872Notes

Reaction equation

HRID 384872 reaction equation
[C:1]([O:5][C:6]([NH:8][CH:9]([C:13]1[CH:18]=[CH:17][C:16]([Cl:19])=[C:15]([F:20])[CH:14]=1)[C:10]([OH:12])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(C(C)C)C(C)C)C.Cl.[CH3:31][NH:32][O:33][CH3:34].[B-](F)(F)(F)F.CN(C(ON1N=NC2C1=CC=CC=2)=[N+](C)C)C>CN(C)C=O.O>[C:1]([O:5][C:6](=[O:7])[NH:8][CH:9]([C:13]1[CH:18]=[CH:17][C:16]([Cl:19])=[C:15]([F:20])[CH:14]=1)[C:10](=[O:12])[N:32]([O:33][CH3:34])[CH3:31])([CH3:2])([CH3:3])[CH3:4]

Participants

7

Reactant 4

HCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 22309186[(tert-butoxycarbonyl)amino](4-chloro-3-fluorophenyl)acetic acid

Product 1

HCID 87442638HCID 87442638, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 6.00 g (19.76 mmol) rac-tert-butoxycarbonylamino-(4-chloro-3-fluoro-phenyl)-acetic acid in 146 ml dimethylformamide were added 20.71 ml (118.6 mmol) N-ethyl-diisopropylamine, 2.07 g (20.75 mmol) N,O-dimethylhydroxylamine hydrochloride and 8.26 g (24.70 mmol) 0-(1H-benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate (TBTU) and the solution stirred at ambient temperature for 30 min. The reaction mixture was diluted with water and the resulting suspension stirred for 15 min. The precipitate was filtered and washed with water and dried: 5.18 g rac-[(4-chloro-3-fluoro-phenyl)-(methoxy-methyl-carbamoyl)-methyl]-carbamic acid tert-butyl ester as colorless solid: MS (ISP): 347.2 (M+H)+ and 247.1 ((M-Boc)+H)+ (100%).

Workup

  1. stirringthe resulting suspension stirred for 15 min
  2. filtrationThe precipitate was filtered
  3. washwashed with water
  4. customdried

Sources & evidence

ORD record
ord-514de68b8d7c497e9914612c13412078
Source dataset
uspto-grants-2013_02
Patent number
US08367838B2

Reaction notes

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