Sodium Bicarbonate → Biphenyl-2-ylcarbamic Acid 1-(2-{[3-(4-{[(R)-2-(tert-Butyldimethylsilanyloxy)-2-(8-hydroxy-2-oxo-1,2-dihydroquinolin-5-yl)ethylamino]-methyl}phenylcarbamoyl)phenyl]methylcarbamoyl}ethyl)piperidin-4-yl Ester

HRID 1039850Notes

Reaction equation

HRID 1039850 reaction equation
[CH:1]([C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10]([C:12]2[CH:13]=[C:14]([CH2:18][NH:19][C:20]([CH2:22][CH2:23][N:24]3[CH2:29][CH2:28][CH:27]([O:30][C:31](=[O:45])[NH:32][C:33]4[CH:38]=[CH:37][CH:36]=[CH:35][C:34]=4[C:39]4[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=4)[CH2:26][CH2:25]3)=[O:21])[CH:15]=[CH:16][CH:17]=2)=[O:11])=[CH:5][CH:4]=1)=O.C(O)(=O)C.[NH2:50][CH2:51][C@@H:52]([C:61]1[CH:70]=[CH:69][C:68]([OH:71])=[C:67]2[C:62]=1[CH:63]=[CH:64][C:65](=[O:72])[NH:66]2)[O:53][Si:54]([C:57]([CH3:60])([CH3:59])[CH3:58])([CH3:56])[CH3:55].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)(O)[O-].[Na+]>C(Cl)Cl.CO>[Si:54]([O:53][C@H:52]([C:61]1[CH:70]=[CH:69][C:68]([OH:71])=[C:67]2[C:62]=1[CH:63]=[CH:64][C:65](=[O:72])[NH:66]2)[CH2:51][NH:50][CH2:1][C:3]1[CH:4]=[CH:5][C:6]([NH:9][C:10]([C:12]2[CH:13]=[C:14]([CH2:18][NH:19][C:20]([CH2:22][CH2:23][N:24]3[CH2:29][CH2:28][CH:27]([O:30][C:31](=[O:45])[NH:32][C:33]4[CH:38]=[CH:37][CH:36]=[CH:35][C:34]=4[C:39]4[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=4)[CH2:26][CH2:25]3)=[O:21])[CH:15]=[CH:16][CH:17]=2)=[O:11])=[CH:7][CH:8]=1)([C:57]([CH3:60])([CH3:59])[CH3:58])([CH3:56])[CH3:55]

Participants

7

Reactant 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 666722995-[(R)-2-amino-1-(tert-butyldimethylsilanyloxy)ethyl]-8-hydroxy-1H-quinolin-2-one acetateHCID 86646970Biphenyl-2-ylcarbamic Acid 1-(2-{[3-(4-Formylphenylcarbamoyl)-phenyl]methylcarbamoyl}ethyl)piperidin-4-yl Ester

Product 1

HCID 87143340Biphenyl-2-ylcarbamic Acid 1-(2-{[3-(4-{[(R)-2-(tert-Butyldimethylsilanyloxy)-2-(8-hydroxy-2-oxo-1,2-dihydroquinolin-5-yl)ethylamino]-methyl}phenylcarbamoyl)phenyl]methylcarbamoyl}ethyl)piperidin-4-yl Ester

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

A solution of biphenyl-2-ylcarbamic acid 1-(2-{[3-(4-formylphenylcarbamoyl)-phenyl]methylcarbamoyl}ethyl)piperidin-4-yl ester (151 mg, 0.250 mmol) and 5-[(R)-2-amino-1-(tert-butyldimethylsilanyloxy)ethyl]-8-hydroxy-1H-quinolin-2-one acetic acid salt (98.6 mg, 0.250 mmol) in 1:1 MeOH:DCM (2.0 mL) was stirred at room temperature for 3 h. Sodium triacetoxyborohydride (159 mg, 0.750 mmol) was added and the reaction mixture was stirred at room temperature for 3 h. LC-MS (Method 10-90) showed product was present (Rt 3.32 min; m/z 923.6 [M+H] Saturated aqueous sodium bicarbonate solution was added and the layers were separated. The organic layer was dried over sodium sulfate, filtered and concentrated under reduced pressure to give the title compound, which was used in the next reaction without further purification.

Workup

  1. customthe layers were separated
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-0cb98820ed644c1382108115ca647739
Source dataset
uspto-grants-2013_10
Patent number
US08551978B2

Reaction notes

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