Methanesulfonyl chloride → (4S,5R)-tert-butyl 4-(fluoromethyl)-2,2-dimethyl-5-(4-(3-(methylsulfonamido-methyl)isoxazol-5-yl)phenyl)oxazolidine-3-carboxylate

HRID 525611Notes

Reaction equation

HRID 525611 reaction equation
[NH2:1][CH2:2][C:3]1[CH:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([C@H:14]3[O:18][C:17]([CH3:20])([CH3:19])[N:16]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[C@@H:15]3[CH2:28][F:29])=[CH:10][CH:9]=2)[O:5][N:4]=1.[S:30](Cl)([CH3:33])(=[O:32])=[O:31].C(N(C(C)C)CC)(C)C>C(Cl)Cl>[F:29][CH2:28][C@@H:15]1[C@@H:14]([C:11]2[CH:10]=[CH:9][C:8]([C:6]3[O:5][N:4]=[C:3]([CH2:2][NH:1][S:30]([CH3:33])(=[O:32])=[O:31])[CH:7]=3)=[CH:13][CH:12]=2)[O:18][C:17]([CH3:19])([CH3:20])[N:16]1[C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22]

Participants

5

Reactant 3

HCID 31297Methanesulfonyl chlorideHCID 81531DiisopropylethylamineHCID 86695497(4S,5R)-tert-butyl 5-(4-(3-(aminomethyl)isoxazol-5-yl)phenyl)-4-(fluoromethyl)-2,2-dimethyloxazolidine-3-carboxylate

Product 1

HCID 86695500(4S,5R)-tert-butyl 4-(fluoromethyl)-2,2-dimethyl-5-(4-(3-(methylsulfonamido-methyl)isoxazol-5-yl)phenyl)oxazolidine-3-carboxylateYield 97.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

To a methylene chloride (10 ml) solution of (4S,5R)-tert-butyl 5-(4-(3-(aminomethyl)isoxazol-5-yl)phenyl)-4-(fluoromethyl)-2,2-dimethyloxazolidine-3-carboxylate (270 mg, 0.66 mmol) that had been cooled to 0° C. is added mesyl chloride (83 mg, 0.73 mmol) and diisopropylethylamine (94 mg, 0.73 mmol) sequentially. The reaction is stirred at 0° C. for thirty minutes then quenched with water (2 ml). The quenched reaction is stirred for thirty minutes at room temperature. The organic phase is dried over sodium sulfate and concentrated to give the title compound (310 mg): m/z (Cl) 484 ([m+H]+.

Workup

  1. customthen quenched with water (2 ml)
  2. customThe quenched reaction
  3. stirringis stirred for thirty minutes at room temperature
  4. dry with materialThe organic phase is dried over sodium sulfate
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-3c939e3b5336495db4eec9900dfea348
Source dataset
uspto-grants-2016_05
Patent number
US09340564B2

Reaction notes

Loading…