Triethylamine → 2-ethoxymethyl-1-{[1-(methanesulfonyl)piperidin-2-yl]methyl}-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-4-amine

HRID 9488Notes

Reaction equation

HRID 9488 reaction equation
Cl.Cl.Cl.[CH2:4]([O:6][CH2:7][C:8]1[N:9]([CH2:28][CH:29]2[CH2:34][CH2:33][CH2:32][CH2:31][NH:30]2)[C:10]2[C:19]3[CH:18]=[CH:17][C:16]([C:20]4[CH:21]=[N:22][CH:23]=[CH:24][CH:25]=4)=[CH:15][C:14]=3[N:13]=[C:12]([NH2:26])[C:11]=2[N:27]=1)[CH3:5].C(N(CC)CC)C.[CH3:42][S:43](Cl)(=[O:45])=[O:44]>C(Cl)(Cl)Cl>[CH2:4]([O:6][CH2:7][C:8]1[N:9]([CH2:28][CH:29]2[CH2:34][CH2:33][CH2:32][CH2:31][N:30]2[S:43]([CH3:42])(=[O:45])=[O:44])[C:10]2[C:19]3[CH:18]=[CH:17][C:16]([C:20]4[CH:21]=[N:22][CH:23]=[CH:24][CH:25]=4)=[CH:15][C:14]=3[N:13]=[C:12]([NH2:26])[C:11]=2[N:27]=1)[CH3:5]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chloride2×HCID 219840622-ethoxymethyl-1-(piperidin-2-ylmethyl)-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-4-amine trihydrochloride

Product 1

HCID 219841652-ethoxymethyl-1-{[1-(methanesulfonyl)piperidin-2-yl]methyl}-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-4-amineYield 34.9%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

A solution of 2-ethoxymethyl-1-(piperidin-2-ylmethyl)-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-4-amine trihydrochloride (0.60 g, 1.1 mmol) and triethylamine (0.79 mL, 5.7 mmol) in chloroform (50 mL) was cooled to 4° C. Methanesulfonyl chloride (0.12 mL, 1.5 mmol) was added, and the reaction was allowed to warm to ambient temperature and stirred overnight. Additional methanesulfonyl chloride (2.5 equivalents) was added at 4° C. over the course of several days. The work-up procedure described in Examples 178 to 181 was carried out. The crude product was purified by HPFC (eluting with chloroform:CMA in a gradient from about 100:0 to 70:30) followed by recrystallization from acetonitrile to provide 0.19 g of 2-ethoxymethyl-1-{[1-(methanesulfonyl)piperidin-2-yl]methyl}-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-4-amine as a white solid, mp 152–154° C.

Workup

  1. customThe crude product was purified by HPFC (
  2. washeluting with chloroform
  3. customCMA in a gradient from about 100:0 to 70:30) followed by recrystallization from acetonitrile

Sources & evidence

ORD record
ord-46965b52963f4a0b906c2734dfbd92bc
Source dataset
uspto-grants-2006_08
Patent number
US07091214B2

Reaction notes

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