Iodoethane → N-((1R*,2R*)-2-{[(5-Chloroindol-2-yl)carbonyl]amino}-cyclopentyl)-5-ethyl-4,5,6,7-tetrahydrothiazolo[5,4-c]-pyridine-2-carboxamide hydrochloride
Reaction equation
Cl.[Cl:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[NH:8][C:7]([C:12]([NH:14][C@@H:15]1[CH2:19][CH2:18][CH2:17][C@H:16]1[NH:20][C:21]([C:23]1[S:24][C:25]3[CH2:26][NH:27][CH2:28][CH2:29][C:30]=3[N:31]=1)=[O:22])=[O:13])=[CH:6]2.[CH2:32](N(CC)CC)[CH3:33].C(I)C>CN(C)C=O.Cl>[ClH:2].[Cl:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[NH:8][C:7]([C:12]([NH:14][C@@H:15]1[CH2:19][CH2:18][CH2:17][C@H:16]1[NH:20][C:21]([C:23]1[S:24][C:25]3[CH2:26][N:27]([CH2:32][CH3:33])[CH2:28][CH2:29][C:30]=3[N:31]=1)=[O:22])=[O:13])=[CH:6]2Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 2
Procedure
(±)-trans-N1-[(5-Chloroindol-2-yl)carbonyl]-N2-[(4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carbonyl]-1,2-cyclopentanediamine hydrochloride (500 mg) was dissolved in N,N-dimethylformamide (10 ml), and triethylamine (576 μl) and ethyl iodide (329 μl) were added to stir the mixture overnight at room temperature. The reaction mixture was concentrated under reduced pressure, and water was added to the residue to collect insoluble matter by filtration. This product was purified by column chromatography on silica gel (dichloromethane:methanol=100:3) to obtain a pale brown foamy substance. This substance was suspended in 1N hydrochloric acid (2 ml), and the suspension was concentrated under reduced pressure to obtain the title compound (180 mg) as a pale yellow foamy substance.
Workup
- concentrationThe reaction mixture was concentrated under reduced pressure, and water
- additionwas added to the residue
- customto collect insoluble matter
- filtrationby filtration
- customThis product was purified by column chromatography on silica gel (dichloromethane:methanol=100:3)
- customto obtain a pale brown foamy substance
- concentrationthe suspension was concentrated under reduced pressure
Sources & evidence
- ORD record
- ord-d3af5b73b1b347eba2bb30a0d4086742
- Source dataset
- uspto-grants-2011_05
- Patent number
- US07935824B2
Reaction notes
Loading…