Sodium Bicarbonate → Ammonia

HRID 2383366Notes

Reaction equation

HRID 2383366 reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][N:11]1[CH2:16][CH2:15][CH:14]([CH2:17][N:18]2[CH:22]=[N:21][C:20]([C@@:23]([CH:31]3[CH2:36][CH2:35][CH2:34][CH2:33][CH2:32]3)([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[OH:24])=[N:19]2)[CH2:13][CH2:12]1.[CH2:37]([O:44][C:45]1[CH:46]=[CH:47][C:48]([C@@H:56]([O:59][Si:60]([C:63]([CH3:66])([CH3:65])[CH3:64])([CH3:62])[CH3:61])[CH2:57]Br)=[C:49]2[C:54]=1[NH:53][C:52](=[O:55])[CH:51]=[CH:50]2)[C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1.C(=O)([O-])O.[Na+]>C(#N)C>[NH3:1].[CH2:37]([O:44][C:45]1[CH:46]=[CH:47][C:48]([C@@H:56]([O:59][Si:60]([C:63]([CH3:64])([CH3:66])[CH3:65])([CH3:62])[CH3:61])[CH2:57][NH:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][N:11]2[CH2:12][CH2:13][CH:14]([CH2:17][N:18]3[CH:22]=[N:21][C:20]([C@:23]([CH:31]4[CH2:32][CH2:33][CH2:34][CH2:35][CH2:36]4)([OH:24])[C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)=[N:19]3)[CH2:15][CH2:16]2)=[C:49]2[C:54]=1[NH:53][C:52](=[O:55])[CH:51]=[CH:50]2)[C:38]1[CH:39]=[CH:40][CH:41]=[CH:42][CH:43]=1

Participants

6

Reactant 3

HCID 516892Sodium BicarbonateHCID 15606253(R)-8-(benzyloxy)-5-(2-bromo-1-((tert-butyldimethylsilyl)oxy)ethyl)quinolin-2(1H)-oneHCID 59145972(R)-(1-{[1-(9-aminononyl)piperidin-4-yl]methyl}-1H-1,2,4-triazol-3-yl)(cyclohexyl) phenylmethanol

Product 2

HCID 222AmmoniaHCID 591459498-(benzyloxy)-5-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}-2-({9-[4-({3-[(R)-cyclohexyl(hydroxy)phenylmethyl]-1H-1,2,4-triazol-1-yl}methyl)piperidin-1-yl]nonyl}amino)ethyl]quinolin-2(1H)-one

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
90 °C

Procedure

(R)-(1-{[1-(9-aminononyl)piperidin-4-yl]methyl}-1H-1,2,4-triazol-3-yl)(cyclohexyl) phenylmethanol (Preparation 6, 350 mg, 0.706 mg), 8-(benzyloxy)-5-[(1R)-2-bromo-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]quinolin-2(1H)-one (WO200509286, 345 mg, 0.706 mmol) and sodium hydrogen carbonate (88.9 mg, 1.06 mmol) were combined in acetonitrile (7 mL). After stirring at 90° C. for 72 hours the solvent was removed in vacuo and residue partitioned between dichloromethane (50 ml) and saturated aqueous sodium bicarbonate solution (50 mL). The organic layer was separated, dried over magnesium sulphate, filtered and the solvent removed in vacuo. The residue was purified by column chromatography on silica gel eluting with dichloromethane:methanol:880 ammonia (99:1:0.1 to 95:5:0.5 by volume) to furnish the title compound as a clear glass, in 37% yield, 240 mg (contains 10% of other triazole regio-isomer).

Workup

  1. customwas removed in vacuo and residue
  2. custompartitioned between dichloromethane (50 ml) and saturated aqueous sodium bicarbonate solution (50 mL)
  3. customThe organic layer was separated
  4. dry with materialdried over magnesium sulphate
  5. filtrationfiltered
  6. customthe solvent removed in vacuo
  7. customThe residue was purified by column chromatography on silica gel eluting with dichloromethane

Sources & evidence

ORD record
ord-47ab3ab4541f4591bc7e4a193aee6931
Source dataset
uspto-grants-2012_09
Patent number
US08263623B2

Reaction notes

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