4-Methylmorpholine → 1,1-dimethylethyl 4-[4-[[methyl[(1R)-1,2,3,4-tetrahydro-1-naphthalenyl]amino]carbonyl]-2-oxazolyl]-1-piperidinecarboxylate

HRID 2043728

Reaction equation

HRID 2043728 reaction equation
[C:1]([C:4]1[N:5]=[C:6]([CH:9]2[CH2:14][CH2:13][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:11][CH2:10]2)[O:7][CH:8]=1)([OH:3])=O.Cl.CN(C)CCCN=C=NCC.CN1CCOCC1.[CH3:41][NH:42][C@H:43]1[C:52]2[C:47](=[CH:48][CH:49]=[CH:50][CH:51]=2)[CH2:46][CH2:45][CH2:44]1>ClCCl>[CH3:41][N:42]([C@H:43]1[C:52]2[C:47](=[CH:48][CH:49]=[CH:50][CH:51]=2)[CH2:46][CH2:45][CH2:44]1)[C:1]([C:4]1[N:5]=[C:6]([CH:9]2[CH2:14][CH2:13][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:11][CH2:10]2)[O:7][CH:8]=1)=[O:3]

Participants

6

Reactant 4

HCID 79724-MethylmorpholineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 7128544(R)-N-Methyl-1,2,3,4-tetrahydronaphthalen-1-amineHCID 674615832-{1-[(Tert-butoxy)carbonyl]piperidin-4-yl}-1,3-oxazole-4-carboxylic acid

Product 1

HCID 674608931,1-dimethylethyl 4-[4-[[methyl[(1R)-1,2,3,4-tetrahydro-1-naphthalenyl]amino]carbonyl]-2-oxazolyl]-1-piperidinecarboxylateYield 40.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 1-(1,1-dimethylethyl) 4-(4-carboxy-2-oxazolyl)-1-piperidinecarboxylate (600 mg, 2.02 mmol), 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (425.57 mg, 2.22 mmol) and N-methylmorpholine (224.55 mg, 2.22 mmol) in 4 mL dichloromethane was stirred for 15 minutes at room temperature. To the reaction mixture was added 424 mg (2.63 mmol) of (1R)-1,2,3,4-tetrahydro-N-methyl-1-naphthalenamine was added and the reaction mixture was stirred for 16 h. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel chromatography using 25-75% of ethyl acetate in hexanes as eluant to give 360 mg of the title compound as an oil.

Workup

  1. additionwas added
  2. stirringthe reaction mixture was stirred for 16 h
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. customthe residue was purified by silica gel chromatography

Sources & evidence

ORD record
ord-dda2aa44125b489d91f55899f0a50dbe
Source dataset
uspto-grants-2013_11
Patent number
US08586611B2

Linked notes

Loading…