4-Methylmorpholine → HCID 86718203, compound

HRID 1844218Notes

Reaction equation

HRID 1844218 reaction equation
[F:1][C:2]1[CH:22]=[CH:21][CH:20]=[C:19]([F:23])[C:3]=1[CH2:4][O:5][C:6]1[C:7]2[N:8]([C:12]([C:16](O)=[O:17])=[C:13]([CH3:15])[N:14]=2)[CH:9]=[CH:10][CH:11]=1.F[B-](F)(F)F.N1(O[C+](N(C)C)N(C)C)C2C=CC=CC=2N=N1.CN1CCOCC1.Cl.[CH3:54][O:55][C:56](=[O:61])[C@H:57]([CH2:59][OH:60])[NH2:58]>CN(C=O)C.O>[F:23][C:19]1[CH:20]=[CH:21][CH:22]=[C:2]([F:1])[C:3]=1[CH2:4][O:5][C:6]1[C:7]2[N:8]([C:12]([C:16]([NH:58][C@H:57]([C:56]([O:55][CH3:54])=[O:61])[CH2:59][OH:60])=[O:17])=[C:13]([CH3:15])[N:14]=2)[CH:9]=[CH:10][CH:11]=1

Participants

7

Reactant 4

HCID 79724-MethylmorpholineHCID 2723730L-Serine, methyl ester, hydrochloride (1:1)HCID 867178728-((2,6-Difluorobenzyl)oxy)-2-methylimidazo[1,2-a]pyridine-3-carboxylic acidHCID 178484679HCID 178484679, compound

Product 1

HCID 86718203HCID 86718203, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

500 mg (1.57 mmol) of 8-[(2,6-difluorobenzyl)oxy]-2-methylimidazo[1,2-a]pyridine-3-carboxylic acid Example 6A, 756 mg (2.36 mmol) of (benzotriazol-1-yloxy)bisdimethylaminomethylium fluoroborate (TBTU) and 794 mg (7.89 mmol) of 4-methylmorpholine were initially charged in 3 ml of DMF. After 10 min at RT, 293 mg (1.89 mmol) of (S)-serine methyl ester hydrochloride were added and the mixture was stirred at RT overnight. About 80 ml of water were added to the reaction solution, and the precipitate formed was stirred for another 30 min, filtered off, washed thoroughly with cold diethyl ether and dried under high vacuum overnight. This gave 601 mg of the target compound (89% of theory, purity 98%).

Workup

  1. customthe precipitate formed
  2. stirringwas stirred for another 30 min
  3. filtrationfiltered off
  4. washwashed thoroughly with cold diethyl ether
  5. customdried under high vacuum overnight

Sources & evidence

ORD record
ord-22e5b62b52b84ae79bac48b79e7590c8
Source dataset
uspto-grants-2015_02
Patent number
US08946215B2

Reaction notes

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