Methanol → 7-methyl-2-propyl-3-[[2'-(N-butoxycarbonylaminosulfonyl)[1,1']biphenyl-4-yl]methyl]-6-[(1-oxobutylamino)]-3H-imidazo[4,5-b]pyridine

HRID 36116

Reaction equation

HRID 36116 reaction equation
[CH3:1][C:2]1[C:7]([NH:8][C:9](=[O:13])[CH2:10][CH2:11][CH3:12])=[CH:6][N:5]=[C:4]2[N:14]([CH2:20][C:21]3[CH:26]=[CH:25][C:24]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=4[S:33]([NH2:36])(=[O:35])=[O:34])=[CH:23][CH:22]=3)[C:15]([CH2:17][CH2:18][CH3:19])=[N:16][C:3]=12.[CH2:37]([O:41][C:42](Cl)=[O:43])[CH2:38][CH2:39][CH3:40].CO>CN(C)C1C=CN=CC=1.N1C=CC=CC=1>[CH3:1][C:2]1[C:7]([NH:8][C:9](=[O:13])[CH2:10][CH2:11][CH3:12])=[CH:6][N:5]=[C:4]2[N:14]([CH2:20][C:21]3[CH:22]=[CH:23][C:24]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=4[S:33]([NH:36][C:42]([O:41][CH2:37][CH2:38][CH2:39][CH3:40])=[O:43])(=[O:35])=[O:34])=[CH:25][CH:26]=3)[C:15]([CH2:17][CH2:18][CH3:19])=[N:16][C:3]=12

Participants

6

Reactant 3

HCID 887MethanolHCID 61140Butyl chloroformateHCID 199397527-methyl-2-propyl-3-[2'-(aminosulfonyl)[1,1']-biphenyl-4-yl]methyl-6-[(1-oxobutyl)amino]-3H-imidazo[4,5-b]pyridine

Product 1

HCID 199397537-methyl-2-propyl-3-[[2'-(N-butoxycarbonylaminosulfonyl)[1,1']biphenyl-4-yl]methyl]-6-[(1-oxobutylamino)]-3H-imidazo[4,5-b]pyridine

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 1049PyridineSolvent

Procedure

To a mixture of 7-methyl-2-propyl-3-[2'-(aminosulfonyl)[1,1']biphenyl-4-yl]methyl-6-[(1-oxobutyl)amino]-3H-imidazo[4, 5-b]pyridine (60 mg, 0.112 mmol) and 4-dimethyaminopyridine (41 mg) in pyridine (1.5 mL) was added n-butylchloroformate (0.071 mL, 0.56 mmol). After 14 h at r.t., MeOH (1 mL) was added and the mixture was concentrated, dissolved in CH2Cl2 (40 mL), washed with 5% aqueous citric acid (2×20 mL), concentrated, and purified (SiO2, (89:9:1CH2Cl2 /MeOH/NH4OH) to give the title compound as a solid.

Workup

  1. concentrationthe mixture was concentrated
  2. dissolutiondissolved in CH2Cl2 (40 mL)
  3. washwashed with 5% aqueous citric acid (2×20 mL)
  4. concentrationconcentrated
  5. custompurified (SiO2, (89:9:1CH2Cl2 /MeOH/NH4OH)

Sources & evidence

ORD record
ord-c56aea7a579b4fcea9a8071a9a4a67e5
Source dataset
uspto-grants-1995_05
Patent number
US05412097

Linked notes

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