4-Methylmorpholine → HCID 59415902, compound

HRID 2061865Notes

Reaction equation

HRID 2061865 reaction equation
[CH3:1][O:2][CH2:3][CH:4]([N:8]1[C:17]2[C:12](=[CH:13][C:14]([I:18])=[CH:15][CH:16]=2)[C:11](=[O:19])[C:10]([C:20](O)=[O:21])=[CH:9]1)[CH2:5][O:6][CH3:7].[N:23]1([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]1.OC1C2N=NNC=2C=CC=1.CN1CCOCC1.Cl.C(N=C=NCCCN(C)C)C>ClCCl>[CH3:7][O:6][CH2:5][CH:4]([N:8]1[C:17]2[C:12](=[CH:13][C:14]([I:18])=[CH:15][CH:16]=2)[C:11](=[O:19])[C:10]([C:20]([N:26]2[CH2:27][CH2:28][N:23]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:24][CH2:25]2)=[O:21])=[CH:9]1)[CH2:3][O:2][CH3:1]

Participants

7

Reactant 5

HCID 79724-MethylmorpholineHCID 143452tert-Butyl piperazine-1-carboxylateHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 59416009HCID 59416009, compound2×HCID 178418300HCID 178418300, compound

Product 1

HCID 59415902HCID 59415902, compoundYield 61%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 1-(1,3-dimethoxypropan-2-yl)-6-iodo-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (Intermediate 78, 500 mg, 1.12 mmol) and tert-butyl piperazine-1-carboxylate (312 mg, 1.67 mmol) in dichloromethane (50 mL) was added hydroxybenzotriazole (HOBT) (183 mg, 1.12 mmol) and N-methyl morpholine (484 mg, 4.79 mmol). The reaction mixture was stirred for 1 h at room temperature and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDCI HCl) (390. mg, 2.15 mmol) was added. The resulting reaction mixture was stirred for room temperature overnight. The reaction mixture was quenched with dilute hydrochloric acid (2N, 30 mL) and the layers were separated. The organic layer was washed with saturated sodium bicarbonate solution (40 mL), water (60 mL) and finally with brine successively and dried over anhydrous sodium sulphate, filtered, concentrated under vacuum to afford tert-butyl 4-{[1-(1,3-dimethoxypropan-2-yl)-6-iodo-4-oxo-1,4-dihydroquinolin-3-yl]carbonyl}piperazine-1-carboxylate 400 mg (57%) as thick oil.

Workup

  1. customThe resulting reaction mixture
  2. stirringwas stirred for room temperature overnight
  3. customThe reaction mixture was quenched with dilute hydrochloric acid (2N, 30 mL)
  4. customthe layers were separated
  5. washThe organic layer was washed with saturated sodium bicarbonate solution (40 mL), water (60 mL) and finally with brine successively
  6. dry with materialdried over anhydrous sodium sulphate
  7. filtrationfiltered
  8. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-2dea38235c4742d58f7fca94cb8d796f
Source dataset
uspto-grants-2012_10
Patent number
US08283361B2

Reaction notes

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