3-(4-Amino-3-methoxyphenyl)-7-iodofuro[3,2-c]pyridin-4-amine → N-[4-(4-amino-7-iodofuro[3,2-c]pyridin-3-yl)-2-methoxyphenyl]-1-methyl-1H-benzimidazole-2-carboxamide

HRID 1270919

Reaction equation

HRID 1270919 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:12]3[C:13]([NH2:18])=[N:14][CH:15]=[C:16]([I:17])[C:11]=3[O:10][CH:9]=2)=[CH:4][C:3]=1[O:19][CH3:20].[CH3:21][N:22]1[C:26]2[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=2[N:24]=[C:23]1[C:31](Cl)=[O:32]>N1C=CC=CC=1>[NH2:18][C:13]1[C:12]2[C:8]([C:5]3[CH:6]=[CH:7][C:2]([NH:1][C:31]([C:23]4[N:22]([CH3:21])[C:26]5[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=5[N:24]=4)=[O:32])=[C:3]([O:19][CH3:20])[CH:4]=3)=[CH:9][O:10][C:11]=2[C:16]([I:17])=[CH:15][N:14]=1

Participants

4

Reactant 2

HCID 184507093-(4-Amino-3-methoxyphenyl)-7-iodofuro[3,2-c]pyridin-4-amineHCID 205432271-Methyl-1H-benzimidazole-2-carbonyl chloride

Product 1

HCID 18451295N-[4-(4-amino-7-iodofuro[3,2-c]pyridin-3-yl)-2-methoxyphenyl]-1-methyl-1H-benzimidazole-2-carboxamideYield 105.8%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Conditions

Temperature
0 °C

Procedure

A solution of 3-(4-amino-3-methoxyphenyl)-7-iodofuro[3,2-c]pyridin-4-amine (1.50 g, 3.94 mmol) in pyridine (18 mL) was cooled to 0° C. and 1-methyl-1H-benzo[d]imidazole-2-carbonyl chloride (0.874 g, 3.33 mmol) was added. The mixture was stirred for 15 minutes at 0° C. and then allowed to rise to ambient temperature over an eighteen hour time period. The solvent was removed in vacuo and the residue was suspended in water (50 mL) and brought to pH 12 with 0.1 N aqueous sodium hydroxide. The suspension was extracted with dichloromethane (4×25 mL) and the combined organic layers were washed with brine (25 mL) and dried over anhydrous magnesium sulfate. The solvent was removed in vacuo to give the title compound (1.90 g, 90%) as a yellow solid. 1H NMR (DMSO-d6, 400 MHz.)δ 10.18 (s, 1H), 8.49 (d, 1H), 8.14 (s, 1H), 8.08 (s, 1H), 7.85 (d, 1H), 7.76 (d, 1H), 7.46 (t, 1H), 7.39 (t, 1H), 7.30 (s, 1H), 7.19 (d, 1H), 5.77–5.89 (b, 2H), 4.24 (s, 3H), 4.03 (s, 3H); RP-HPLC (Conditions d) Rt 11.89 min.; MS: MH+ 540.

Workup

  1. waitto rise to ambient temperature over an eighteen hour
  2. customThe solvent was removed in vacuo
  3. extractionThe suspension was extracted with dichloromethane (4×25 mL)
  4. washthe combined organic layers were washed with brine (25 mL)
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solvent was removed in vacuo

Sources & evidence

ORD record
ord-a03d437eddd4489399c09bc23c4ab2e4
Source dataset
uspto-grants-2007_04
Patent number
US07202363B2

Linked notes

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