Hydroxyamine hydrochloride → HCID 131735102, compound

HRID 929228Notes

Reaction equation

HRID 929228 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[NH:22][C:21]([O:23][C@@H:24]3[CH2:28][O:27][C@@H:26]4[C:29](=O)[CH2:30][O:31][C@H:25]34)=[N:20][C:5]2=[N:6][C:7]=1[C:8]1[CH:13]=[CH:12][C:11]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)=[CH:10][CH:9]=1.Cl.[NH2:34][OH:35]>N1C=CC=CC=1.CO>[Cl:1][C:2]1[CH:3]=[C:4]2[NH:22][C:21]([O:23][C@@H:24]3[CH2:28][O:27][C@@H:26]4[C:29](=[N:34][OH:35])[CH2:30][O:31][C@H:25]34)=[N:20][C:5]2=[N:6][C:7]=1[C:8]1[CH:13]=[CH:12][C:11]([C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=2)=[CH:10][CH:9]=1

Participants

5

Reactant 2

HCID 443297Hydroxyamine hydrochlorideHCID 90041963HCID 90041963, compound

Product 1

HCID 131735102HCID 131735102, compound

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 1049PyridineSolvent

Procedure

A mixture of (3R,3aR,6aS)-3-[[6-chloro-5-(4-phenylphenyl)-1H-imidazo[4,5-b]pyridin-2-yl]oxy]-2,3,3a,6a-tetrahydrofuro[3,2-b]furan-6-one (88 mg, 0.196 mmol) and hydroxylamine hydrochloride (39.5 mg, 0.568 mmol) in pyridine (0.5 ml) was stirred at room temperature for 2 hours. Then the reaction mixture was evaporated to give a foam, which was dissolved in methanol (2 mL) and purified by preparative HPLC reverse phase (C-18), using a 30×150 mm Sunfire™ column and eluting with a 20%-80% acetonitrile/water to give the title compound. Major Oxime stereoisomer LC-MS: calculated for C24H19ClN4O4 462.11 observed m/e: 463.18 (M+H)+ (Rt 1.20/2 min); 1H NMR δ (ppm) (CD3OD): 7.94 (s, 1H), 7.76 (ABq, 4H), 7.71 (d, 2H), 7.49 (dd, 2H), 7.39 (dd, 1H), 5.62 (m, 1H), 5.14 (t, 1H), 5.00 (d, 1H), 4.63 (s, 2H), 4.27 (dd, 2H) and 4.08 (dd, 1H). (Contains a small amount of minor oxime stereoisomer).

Workup

  1. customThen the reaction mixture was evaporated
  2. customto give a foam, which
  3. custompurified by preparative HPLC reverse phase (C-18)
  4. washeluting with a 20%-80% acetonitrile/water

Sources & evidence

ORD record
ord-0a428b0835c044559c75aa23becc11e8
Source dataset
uspto-grants-2016_03
Patent number
US09290517B2

Reaction notes

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