Ethanol → HCID 178445711, compound

HRID 1802064Notes

Reaction equation

HRID 1802064 reaction equation
[C:1]([C@H:5]1[CH2:10][CH2:9][C@H:8]([O:11][C:12]2[CH:13]=[C:14]3[C:19](=[CH:20][CH:21]=2)[CH2:18][C@@H:17]([C@@:22]2([CH3:28])[CH2:26][O:25]C(=O)[NH:23]2)[CH2:16][CH2:15]3)[CH2:7][CH2:6]1)([CH3:4])([CH3:3])[CH3:2].[OH-].[Li+].C(O)C.O>>[NH2:23][C@:22]([C@H:17]1[CH2:16][CH2:15][C:14]2[C:19](=[CH:20][CH:21]=[C:12]([O:11][C@H:8]3[CH2:7][CH2:6][C@H:5]([C:1]([CH3:4])([CH3:3])[CH3:2])[CH2:10][CH2:9]3)[CH:13]=2)[CH2:18]1)([CH3:28])[CH2:26][OH:25]

Participants

5

Reactant 4

HCID 702EthanolHCID 962WaterHCID 3939Lithium HydroxideHCID 178445706HCID 178445706, compound

Product 1

HCID 178445711HCID 178445711, compoundYield 66.7%

Procedure

The mixture of (S)-4-((S)-6-(trans-4-tert-butylcyclohexyloxy)-1,2,3,4-tetrahydronaphthalen-2-yl)-4-methyloxazolidin-2-one (46.6 mg, 0.000121 mol) (isomer 2) and lithium hydroxide (31.8 mg, 0.00133 mol) in ethanol (0.77 mL, 0.013 mol) and water (0.26 mL, 0.014 mol) was heated to reflux for overnight. LCMS showed starting material was consumed and peak Rf=1.66 min left. The solvent was removed under vacuum and the residue was partitioned between water and dichloromethane. The aqueous was extensively extracted with dichloromethane. And the combined organic phase was dried over Na2SO4. The concentrated residue was taken up into dichloromethane and subjected to chromatography purification with dichloromethane/MeOH (10:90 to 80:20) to give the product (29.0 mg, 66% yield). LCMS360.42 ([M+1], 100%). 1H NMR (400 MHz, CD3OD) δ ppm 0.89 (s, 9H), 1.06 (s, 3H), 1.04-1.40 (m, 6H), 1.77-1.88 (m, 3H), 1.97 (m, 1H), 2.15 (m, 2H), 2.56 (dd, J=15.8, 12.1 Hz, 1H), 2.71-2.84 (m, 3H), 3.47 (d, J=10.9 Hz, 1H), 3.51 (d, J=10.9 Hz, 1H), 4.07 (m, 1H), 6.58 (d, J=2.5 Hz, 1H), 6.63 (dd, J=8.2, 2.5 Hz, 1H), 6.96 (d, J=8.2 Hz, 1H).

Workup

  1. temperaturewas heated
  2. temperatureto reflux for overnight
  3. customwas consumed
  4. waitpeak Rf=1.66 min left
  5. customThe solvent was removed under vacuum
  6. customthe residue was partitioned between water and dichloromethane
  7. extractionThe aqueous was extensively extracted with dichloromethane
  8. dry with materialAnd the combined organic phase was dried over Na2SO4
  9. customsubjected to chromatography purification with dichloromethane/MeOH (10:90 to 80:20)

Sources & evidence

ORD record
ord-707633f1b7c44191bc42d994f934fce2
Source dataset
uspto-grants-2013_01
Patent number
US08349849B2

Reaction notes

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