Chloroform → (11S)-6-Amino-11-isopropyl-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinolin-3-ol

HRID 221534Notes

Reaction equation

HRID 221534 reaction equation
C([O:8][C:9]1[CH:18]=[C:17]2[C:12]([C:13]3[N:22]4[C@@H:23]([CH:27]([CH3:29])[CH3:28])[CH2:24][O:25][CH2:26][C:21]4=[N:20][C:14]=3[C:15]([NH2:19])=[N:16]2)=[CH:11][CH:10]=1)C1C=CC=CC=1.C(Cl)(Cl)Cl>C(O)C.[Pd]>[NH2:19][C:15]1[C:14]2[N:20]=[C:21]3[CH2:26][O:25][CH2:24][C@H:23]([CH:27]([CH3:28])[CH3:29])[N:22]3[C:13]=2[C:12]2[C:17](=[CH:18][C:9]([OH:8])=[CH:10][CH:11]=2)[N:16]=1

Participants

5

Reactant 2

HCID 6212ChloroformHCID 58406147(11S)-3-(Benzyloxy)-11-isopropyl-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinolin-6-amine

Product 1

HCID 136102216(11S)-6-Amino-11-isopropyl-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinolin-3-olYield 60.5%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

(11S)-3-(Benzyloxy)-11-isopropyl-10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinolin-6-amine (800 mg, 2.05 mmol) was dissolved in 260 mL of ethanol and the solution was placed in a pressure bottle. Palladium on carbon (10%, 460 mg) was then added and the reaction mixture was shaken under H2 at 48 PSI (3.3×105 Pa) overnight. The reaction mixture was filtered through a pad of CELITE filter agent. The pad was rinsed with 1:1 CH2Cl2/ethanol and the combined filtrates were concentrated under reduced pressure to give an off-white solid. Chromatography (SiO2, 20-40% CMA/CHCl3) gave the desired product (370 mg) as an off-white solid, mp 210-215° C.

Workup

  1. filtrationThe reaction mixture was filtered through a pad of CELITE
  2. filtrationfilter agent
  3. washThe pad was rinsed with 1:1 CH2Cl2/ethanol
  4. concentrationthe combined filtrates were concentrated under reduced pressure
  5. customto give an off-white solid

Sources & evidence

ORD record
ord-e20c4b14f38d4275b4fe3d7771cb9207
Source dataset
uspto-grants-2012_06
Patent number
US08207162B2

Reaction notes

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