Triethylamine → 3-((R)-3-((S)-1-(4-bromophenyl)ethyl)-2-oxo-6-phenyl-1,3-oxazinan-6-yl)propyl methanesulfonate

HRID 1640728Notes

Reaction equation

HRID 1640728 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([N:10]2[CH2:15][CH2:14][C@:13]([CH2:22][CH2:23][CH2:24][OH:25])([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[O:12][C:11]2=[O:26])[CH3:9])=[CH:4][CH:3]=1.CCN(CC)CC.[CH3:34][S:35](Cl)(=[O:37])=[O:36]>C(Cl)Cl>[CH3:34][S:35]([O:25][CH2:24][CH2:23][CH2:22][C@@:13]1([C:16]2[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=2)[O:12][C:11](=[O:26])[N:10]([C@H:8]([C:5]2[CH:6]=[CH:7][C:2]([Br:1])=[CH:3][CH:4]=2)[CH3:9])[CH2:15][CH2:14]1)(=[O:37])=[O:36]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 59532368(R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(3-hydroxypropyl)-6-phenyl-1,3-oxazinan-2-one

Product 1

HCID 596357093-((R)-3-((S)-1-(4-bromophenyl)ethyl)-2-oxo-6-phenyl-1,3-oxazinan-6-yl)propyl methanesulfonateYield 98.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(3-hydroxypropyl)-6-phenyl-1,3-oxazinan-2-one (200 mg, 0.48 mmol) in CH2Cl2 (5 mL) was added Et3N (240 mg, 2.4 mmol) and methanesulfonyl chloride (164 mg, 1.4 mmol) at 0° C. The reaction solution was stirred at it for 1 h. The reaction was quenched with H2O and the mixture was extracted with CH2Cl2. The organic phase was concentrated to give 3-((R)-3-((S)-1-(4-bromophenyl)ethyl)-2-oxo-6-phenyl-1,3-oxazinan-6-yl)propyl methanesulfonate (234 mg, 98%), which was used for the next step without further purification.

Workup

  1. customThe reaction was quenched with H2O
  2. extractionthe mixture was extracted with CH2Cl2
  3. concentrationThe organic phase was concentrated

Sources & evidence

ORD record
ord-e859c123cc614223b9de783097665d8e
Source dataset
uspto-grants-2012_02
Patent number
US08114868B2

Reaction notes

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