Ammonia methanol → (R)-2-[(RS)-2-(2-Bromo-5-fluoro-pyridin-4-yl)-2-(2-nitro-benzenesulfonylamino)-propoxy]-3,3,3-trifluoro-2-methyl-propionamide

HRID 474086Notes

Reaction equation

HRID 474086 reaction equation
C([O:3][C:4](=O)[C@:5]([O:11][CH2:12][C:13]([C:28]1[C:33]([F:34])=[CH:32][N:31]=[C:30]([Br:35])[CH:29]=1)([NH:15][S:16]([C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=1[N+:25]([O-:27])=[O:26])(=[O:18])=[O:17])[CH3:14])([CH3:10])[C:6]([F:9])([F:8])[F:7])C.[NH3:37].CO>>[Br:35][C:30]1[CH:29]=[C:28]([C:13]([NH:15][S:16]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[N+:25]([O-:27])=[O:26])(=[O:17])=[O:18])([CH3:14])[CH2:12][O:11][C@@:5]([CH3:10])([C:6]([F:7])([F:9])[F:8])[C:4]([NH2:37])=[O:3])[C:33]([F:34])=[CH:32][N:31]=1

Participants

3

Reactant 2

HCID 21705897Ammonia methanolHCID 86668056(R)-2-[(RS)-2-(2-Bromo-5-fluoro-pyridin-4-yl)-2-(2-nitro-benzenesulfonylamino)-propoxy]-3,3,3-trifluoro-2-methyl-propionic acid ethyl ester

Product 1

HCID 86668057(R)-2-[(RS)-2-(2-Bromo-5-fluoro-pyridin-4-yl)-2-(2-nitro-benzenesulfonylamino)-propoxy]-3,3,3-trifluoro-2-methyl-propionamide

Procedure

A solution of (R)-2-[(RS)-2-(2-Bromo-5-fluoro-pyridin-4-yl)-2-(2-nitro-benzenesulfonylamino)-propoxy]-3,3,3-trifluoro-2-methyl-propionic acid ethyl ester (920 mg, 1.527 mmol) in 7N NH3/MeOH (11 ml) was stirred in a sealed glass vial at 55° C. for 44 h. The reaction mixture was evaporated to dryness to leave a yellow solid that was used for the next step without further purification (diastereomer mixture). RtH4=1.03 min; ESIMS: 573, 575 [(M+H)+]; 1H NMR (400 MHz, CDCl3): δ 8.00 (m, 1H), 7.97-7.91 (m, 1H), 7.80-7.63 (m, 3H), 7.55 (m, 1H), 6.63 (m, 1H), 6.41 (m, 1H), 5.74 (m, 1H), 4.15 (m, 1H), 3.97 (m, 1H), 1.84 (2s, 3H), 1.69 (2s, 3H).

Workup

  1. customThe reaction mixture was evaporated to dryness
  2. customto leave a yellow solid that
  3. customwas used for the next step without further purification (diastereomer mixture)
  4. customRtH4=1.03 min

Sources & evidence

ORD record
ord-70106730cf7f4f06bfca98f138e0e79d
Source dataset
uspto-grants-2014_01
Patent number
US08637508B2

Reaction notes

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