Ethanol → HCID 178445711, compound

HRID 709849Notes

Reaction equation

HRID 709849 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) (isomer2) 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). LCMS 360.42 ([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-2b15eb8026e54955829309eed9948146
Source dataset
uspto-grants-2015_11
Patent number
US09181191B2

Reaction notes

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