Potassium Carbonate → methyl 5-[6-({[tert-butyl(dimethyl)silyl]oxy}methyl)-3H-imidazo[4,5-c]pyridin-3-yl]-3-{1-[2-(trifluoromethyl)phenyl]ethoxy}thiophene-2-carboxylate
Reaction equation
[Si:1]([O:8][CH2:9][C:10]1[N:15]=[CH:14][C:13]2[N:16]([C:19]3[S:23][C:22]([C:24]([O:26][CH3:27])=[O:25])=[C:21]([OH:28])[CH:20]=3)[CH:17]=[N:18][C:12]=2[CH:11]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[Si](OCC1N=CC2N=CN(C3SC(C(OC)=O)=C(O)C=3)C=2C=1)(C(C)(C)C)(C)C.C([O-])([O-])=O.[K+].[K+].Br[CH:64]([C:66]1[CH:71]=[CH:70][CH:69]=[CH:68][C:67]=1[C:72]([F:75])([F:74])[F:73])[CH3:65]>CN(C)C=O>[Si:1]([O:8][CH2:9][C:10]1[N:15]=[CH:14][C:13]2[N:16]([C:19]3[S:23][C:22]([C:24]([O:26][CH3:27])=[O:25])=[C:21]([O:28][CH:64]([C:66]4[CH:71]=[CH:70][CH:69]=[CH:68][C:67]=4[C:72]([F:73])([F:74])[F:75])[CH3:65])[CH:20]=3)[CH:17]=[N:18][C:12]=2[CH:11]=1)([C:4]([CH3:5])([CH3:6])[CH3:7])([CH3:2])[CH3:3]Participants
6
Reactant 4
HCID 11430Potassium Carbonate
HCID 27756211-(1-Bromoethyl)-2-(trifluoromethyl)benzene
HCID 68766004methyl 5-[6-({[tert-butyl(dimethyl)silyl]oxy}methyl)-3H-imidazo[4,5-c]pyridin-3-yl]-3-hydroxythiophene-2-carboxylate
HCID 68766707methyl 5-[6-({[tert-butyl(dimethyl)silyl]oxy}methyl)-1H-imidazo[4,5-c]pyridin-1-yl]-3-hydroxythiophene-2-carboxylateProduct 1
Reagents, catalysts & solvents 1
Procedure
In a similar manner as described for example B3, 8.0 g of an isomeric mixture of methyl 5-[6-({[tert-butyl(dimethyl)silyl]oxy}methyl)-3H-imidazo[4,5-c]pyridin-3-yl]-3-hydroxythiophene-2-carboxylate and methyl 5-[6-({[tert-butyl(dimethyl)silyl]oxy}methyl)-1H-imidazo[4,5-c]pyridin-1-yl]-3-hydroxythiophene-2-carboxylate (example C3) and 3.15 g of K2CO3 and 5.95 g of 1-(1-bromoethyl)-2-(trifluoromethyl)benzene in 240 ml anhydrous N,N-dimethylformamide yield compound B25a and compound B25b.
Workup
- customyield compound B25a
Sources & evidence
- ORD record
- ord-d025a62bfec1478ca9652e63ff144685
- Source dataset
- uspto-grants-2012_09
- Patent number
- US08273890B2
Reaction notes
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