3-Pentanol → Ethyl 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(1-ethyl-propoxy)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyrate

HRID 604072Notes

Reaction equation

HRID 604072 reaction equation
[F:1][C:2]([F:43])([F:42])[C:3]1[CH:4]=[C:5]([CH:35]=[C:36]([C:38]([F:41])([F:40])[F:39])[CH:37]=1)[CH2:6][N:7]([CH2:23][C:24]1[CH:29]=[C:28]([C:30]([F:33])([F:32])[F:31])[CH:27]=[CH:26][C:25]=1[OH:34])[C:8]1[N:13]=[CH:12][C:11]([O:14][CH2:15][CH2:16][CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])=[CH:10][N:9]=1.[CH3:44][CH2:45][CH:46](O)[CH2:47][CH3:48].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>O1CCCC1.C1(C)C=CC=CC=1.C(OCC)(=O)C.O>[F:43][C:2]([F:1])([F:42])[C:3]1[CH:4]=[C:5]([CH:35]=[C:36]([C:38]([F:39])([F:40])[F:41])[CH:37]=1)[CH2:6][N:7]([CH2:23][C:24]1[CH:29]=[C:28]([C:30]([F:33])([F:32])[F:31])[CH:27]=[CH:26][C:25]=1[O:34][CH:46]([CH2:47][CH3:48])[CH2:45][CH3:44])[C:8]1[N:9]=[CH:10][C:11]([O:14][CH2:15][CH2:16][CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])=[CH:12][N:13]=1

Participants

9

Reactant 4

HCID 114283-PentanolHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 86626825Ethyl 4-{2-[(3,5-bis-trifluoromethyl-benzyl)-(2-hydroxy-5-trifluoromethyl-benzyl)-amino]-pyrimidin-5-yloxy}-butyrate

Product 1

HCID 86626827Ethyl 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(1-ethyl-propoxy)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyrateYield 58.4%

Reagents, catalysts & solvents 4

HCID 962WaterSolventHCID 1140TolueneSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

Ethyl 4-{2-[(3,5-bis-trifluoromethyl-benzyl)-(2-hydroxy-5-trifluoromethyl-benzyl)-amino]-pyrimidin-5-yloxy}-butyrate (300 mg) and 3-pentanol (63 mg) are dissolved in tetrahydrofuran (4 ml), and thereto are added dropwise triphenylphosphine (189 mg) and a 40% diethyl azodicarboxylate in toluene (130 μl) under ice-cooling, and the mixture is stirred at room temperature overnight. Thereto are added water and ethyl acetate, and the mixture is separated, and the organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=1:0→9:1) to give ethyl 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(1-ethyl-propoxy)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyrate (195 mg). MS (m/z): 696 [M+H]+

Workup

  1. customthe mixture is separated
  2. washthe organic layer is washed with a saturated brine
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=1:0→9:1)

Sources & evidence

ORD record
ord-71bc81719f2945d182cf2533b9a85866
Source dataset
uspto-grants-2011_03
Patent number
US07906517B2

Reaction notes

Loading…