Dichloromethane → 2,3-Dimethyl-8-(2-ethyl-6-methylbenzylamino)-6-(morpholinocarbonyl)-imidazo[1,2-a]pyridine

HRID 427474Notes

Reaction equation

HRID 427474 reaction equation
[CH3:1][C:2]1[N:3]=[C:4]2[C:9]([NH:10][CH2:11][C:12]3[C:17]([CH3:18])=[CH:16][CH:15]=[CH:14][C:13]=3[CH2:19][CH3:20])=[CH:8][C:7]([C:21]([OH:23])=O)=[CH:6][N:5]2[C:24]=1[CH3:25].[B-](F)(F)(F)F.CN(C(ON1N=NC2C1=CC=CC=2)=[N+](C)C)C.C(Cl)Cl.[NH:51]1[CH2:56][CH2:55][O:54][CH2:53][CH2:52]1>C(OC(=O)C)C.C(Cl)Cl>[CH3:1][C:2]1[N:3]=[C:4]2[C:9]([NH:10][CH2:11][C:12]3[C:17]([CH3:18])=[CH:16][CH:15]=[CH:14][C:13]=3[CH2:19][CH3:20])=[CH:8][C:7]([C:21]([N:51]3[CH2:56][CH2:55][O:54][CH2:53][CH2:52]3)=[O:23])=[CH:6][N:5]2[C:24]=1[CH3:25]

Participants

6

Reactant 4

HCID 6344DichloromethaneHCID 8083MorpholineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 118239362,3-Dimethyl-8-(2-ethyl-6-methylbenzylamino)-imidazo[1,2-a]pyridine-6-carboxylic acid

Product 1

HCID 98226342,3-Dimethyl-8-(2-ethyl-6-methylbenzylamino)-6-(morpholinocarbonyl)-imidazo[1,2-a]pyridineYield 67.1%

Reagents, catalysts & solvents 1

HCID 21226138Dichloromethane ethylacetateSolvent

Procedure

2,3-Dimethyl-8-(2-ethyl-6-methylbenzylamino)-imidazo[1,2-a]pyridine-6-carboxylic acid (0.15 g, 0.44 mmol) and o-Benzotriazol-1-yl-N,N,N′,N′-Tetramethyluronium tetrafluoroborate (TBTU)(0.14 g, 0.44 mmol) were added to methylene chloride (10 ml). Morpholine (0.12 g, 1.4 mmol) was added and the reaction mixture was stirred at ambient temperature for 1.5 h. The reaction mixture was added to a column with silica gel and purification by chromatography using ethylacetate:methylene chloride (1:1) as eluent gave 0.12 g (66%) of the desired product.

Workup

  1. additionThe reaction mixture was added to a column with silica gel and purification by chromatography

Sources & evidence

ORD record
ord-5373ac6385da469d951ad508a2b22454
Source dataset
uspto-grants-2001_11
Patent number
US06313136B1

Reaction notes

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