Perchloric Acid → 3-(2-{(2S,3R,4S,5R)-4,5-dihydroxy-2-[2-(4'-methoxybiphenyl-4-yl)ethyl]tetrahydrofuran-3-yl}ethyl)-1,2,3-benzotriazin-4(3H)-one

HRID 2410447Notes

Reaction equation

HRID 2410447 reaction equation
Cl(O)(=O)(=O)=O.[CH3:6][O:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2[CH:19]=[CH:18][C:17]([CH2:20][CH2:21][C@@H:22]3[O:31][C@H:25]4[O:26]C(C)(C)[O:28][C@H:24]4[C@H:23]3[CH2:32][CH2:33][N:34]3[C:39](=[O:40])[C:38]4[CH:41]=[CH:42][CH:43]=[CH:44][C:37]=4[N:36]=[N:35]3)=[CH:16][CH:15]=2)=[CH:10][CH:9]=1>C(#N)C.C(OCC)(=O)C.O>[OH:28][C@@H:24]1[C@H:25]([OH:26])[O:31][C@@H:22]([CH2:21][CH2:20][C:17]2[CH:18]=[CH:19][C:14]([C:11]3[CH:10]=[CH:9][C:8]([O:7][CH3:6])=[CH:13][CH:12]=3)=[CH:15][CH:16]=2)[C@@H:23]1[CH2:32][CH2:33][N:34]1[C:39](=[O:40])[C:38]2[CH:41]=[CH:42][CH:43]=[CH:44][C:37]=2[N:36]=[N:35]1

Participants

6

Reactant 2

HCID 24247Perchloric AcidHCID 687633893-(2-{(3aS,5S,6S,6aS)-5-[2-(4'-methoxybiphenyl-4-yl)ethyl]-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl}ethyl)-1,2,3-benzotriazin-4(3H)-one

Product 1

HCID 671833753-(2-{(2S,3R,4S,5R)-4,5-dihydroxy-2-[2-(4'-methoxybiphenyl-4-yl)ethyl]tetrahydrofuran-3-yl}ethyl)-1,2,3-benzotriazin-4(3H)-one

Reagents, catalysts & solvents 3

HCID 962WaterSolvent2×HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
55 °C

Procedure

Perchloric acid (0.2 mL) was added to a solution of the compound obtained from step f above (0.6 g) in acetonitrile (50 mL) and water (10 mL) at room temperature. The reaction mixture was heated to 55° C. for 30 minutes. The reaction mixture was then quenched using a sodium hydrogen carbonate solution. The solvents were evaporated at reduced pressure. The residue thus obtained was taken in ethyl acetate and water. The organic layer was separated, washed with water and brine solution, and dried over anhydrous sodium sulphate. The solvent was concentrated under reduced pressure to yield the title compound (0.6 g).

Workup

  1. customat room temperature
  2. customThe reaction mixture was then quenched
  3. customThe solvents were evaporated at reduced pressure
  4. customThe residue thus obtained
  5. customThe organic layer was separated
  6. washwashed with water and brine solution
  7. dry with materialdried over anhydrous sodium sulphate
  8. concentrationThe solvent was concentrated under reduced pressure

Sources & evidence

ORD record
ord-a6e1dbd734bb460986a6457a559789d9
Source dataset
uspto-grants-2014_08
Patent number
US08816073B2

Reaction notes

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