Morpholine → tert-butyl ((2S,4R)-1-acetyl-2-methyl-6-(5-(morpholine-4-carbonyl)pyridin-2-yl)-1,2,3,4-tetrahydroquinolin-4-yl)carbamate

HRID 882263Notes

Reaction equation

HRID 882263 reaction equation
[C:1]([N:4]1[C:13]2[C:8](=[CH:9][C:10]([C:14]3[CH:22]=[CH:21][C:17]([C:18]([OH:20])=O)=[CH:16][N:15]=3)=[CH:11][CH:12]=2)[C@H:7]([NH:23][C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:6][C@@H:5]1[CH3:31])(=[O:3])[CH3:2].[NH:32]1[CH2:37][CH2:36][O:35][CH2:34][CH2:33]1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[C:1]([N:4]1[C:13]2[C:8](=[CH:9][C:10]([C:14]3[CH:22]=[CH:21][C:17]([C:18]([N:32]4[CH2:37][CH2:36][O:35][CH2:34][CH2:33]4)=[O:20])=[CH:16][N:15]=3)=[CH:11][CH:12]=2)[C@H:7]([NH:23][C:24](=[O:25])[O:26][C:27]([CH3:30])([CH3:28])[CH3:29])[CH2:6][C@@H:5]1[CH3:31])(=[O:3])[CH3:2]

Participants

6

Reactant 4

HCID 8083MorpholineHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 867094306-((2S,4R)-1-acetyl-4-((tert-butoxycarbonyl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)nicotinic acid

Product 1

HCID 86709431tert-butyl ((2S,4R)-1-acetyl-2-methyl-6-(5-(morpholine-4-carbonyl)pyridin-2-yl)-1,2,3,4-tetrahydroquinolin-4-yl)carbamateYield 86%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

6-((2S,4R)-1-acetyl-4-((tert-butoxycarbonyl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)nicotinic acid (for a preparation, see Intermediate 63) (2.05 g, 4.82 mmol), morpholine (2.084 mL, 24.09 mmol), HATU (2.015 g, 5.30 mmol) and DIPEA (2.52 mL, 14.45 mmol) were combined in DMF (25 mL) and the reaction stirred at room temperature for 90 mins. The mixture was concentrated in vacuo before being dissolved in DCM and loaded onto an aminopropyl SPE column (70 g). The column was eluted with 10% MeOH in DCM, and the appropriate fractions combined and concentrated to dryness in cavuo. The residue was purified by chromatography (100 g column, EtOAc/cyclohexane gradient) to give tert-butyl ((2S,4R)-1-acetyl-2-methyl-6-(5-(morpholine-4-carbonyl)pyridin-2-yl)-1,2,3,4-tetrahydroquinolin-4-yl)carbamate (2.05 g, 4.14 mmol, 86% yield).

Workup

  1. concentrationThe mixture was concentrated in vacuo
  2. dissolutionbefore being dissolved in DCM
  3. washThe column was eluted with 10% MeOH in DCM
  4. concentrationconcentrated to dryness in cavuo
  5. customThe residue was purified by chromatography (100 g column, EtOAc/cyclohexane gradient)

Sources & evidence

ORD record
ord-51943cf29d644bc88272cbdb6d13ee0a
Source dataset
uspto-grants-2015_03
Patent number
US08993554B2

Reaction notes

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