2-Aminoquinoline → (1S,3R)-[3-(quinolin-2-ylcarbamoyl)-cyclopentyl]-carbamic acid tert-butyl ester

HRID 475421Notes

Reaction equation

HRID 475421 reaction equation
[C:1]([O:5][C:6]([NH:8][C@@H:9]1[CH2:13][CH2:12][C@H:11]([C:14]([OH:16])=O)[CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH2:17][C:18]1[CH:27]=[CH:26][C:25]2[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=2)[N:19]=1.C1C=CC2N(O)N=NC=2C=1.C(N(C(C)C)CC)(C)C>CN(C=O)C.C(OCC)(=O)C>[C:1]([O:5][C:6](=[O:7])[NH:8][C@H:9]1[CH2:13][CH2:12][C@@H:11]([C:14](=[O:16])[NH:17][C:18]2[CH:27]=[CH:26][C:25]3[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=3)[N:19]=2)[CH2:10]1)([CH3:2])([CH3:3])[CH3:4]

Participants

7

Reactant 4

HCID 113792-AminoquinolineHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 1512529(1S,3R)-3-(((tert-butoxy)carbonyl)amino)cyclopentane-1-carboxylic acid

Product 1

HCID 66756862(1S,3R)-[3-(quinolin-2-ylcarbamoyl)-cyclopentyl]-carbamic acid tert-butyl ester

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of Example 191A (91.6 mg, 0.4 mmol) in DMF (4 ml) was added 2-aminoquinoline (64 mg, 0.44 mmol), ED AC (93 mg, 0.48 mmol), HOBT (82 mg, 0.6 mmol), and diisopropylethylamine (0.35 ml, 2 mmol). The mixture was stirred at room temperature overnight, diluted with ethyl acetate, washed with water (2 times) and brine. The organic layer was dried (sodium sulfate), filtered, concentrated under reduced pressure and purified by flash chromatography with 3% methanol/dichloromethane to provide the titled compound. MS (ESI) m/z 356 (M+H)+.

Workup

  1. washwashed with water (2 times) and brine
  2. dry with materialThe organic layer was dried (sodium sulfate)
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. custompurified by flash chromatography with 3% methanol/dichloromethane

Sources & evidence

ORD record
ord-41d139a1514f479d88d42d2f2a1b336c
Source dataset
uspto-grants-2014_01
Patent number
US08637546B2

Reaction notes

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