Triethylamine → N-[3-(4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl)propyl]-5-(dimethylamino)naphthalene-1-sulfonamide

HRID 2180290Notes

Reaction equation

HRID 2180290 reaction equation
C(N(CC)CC)C.[NH2:8][CH2:9][CH2:10][CH2:11][N:12]1[C:24]2[C:23]3[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=3[N:17]=[C:16]([NH2:25])[C:15]=2[N:14]=[C:13]1[CH2:26][CH2:27][CH2:28][CH3:29].[CH3:30][N:31]([CH3:46])[C:32]1[CH:41]=[CH:40][CH:39]=[C:38]2[C:33]=1[CH:34]=[CH:35][CH:36]=[C:37]2[S:42](Cl)(=[O:44])=[O:43].C(=O)([O-])[O-].[K+].[K+]>CN1CCCC1=O.O>[NH2:25][C:16]1[C:15]2[N:14]=[C:13]([CH2:26][CH2:27][CH2:28][CH3:29])[N:12]([CH2:11][CH2:10][CH2:9][NH:8][S:42]([C:37]3[C:38]4[C:33](=[C:32]([N:31]([CH3:46])[CH3:30])[CH:41]=[CH:40][CH:39]=4)[CH:34]=[CH:35][CH:36]=3)(=[O:44])=[O:43])[C:24]=2[C:23]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[N:17]=1

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 11430Potassium CarbonateHCID 11801Dansyl chlorideHCID 223444131-(3-aminopropyl)-2-butyl-1H-imidazo[4,5-c]quinolin-4-amine

Product 1

HCID 10459670N-[3-(4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl)propyl]-5-(dimethylamino)naphthalene-1-sulfonamideYield 65.8%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 13387N-methyl-2-pyrrolidoneSolvent2×

Procedure

Under a nitrogen atmosphere triethylamine (765 mg, 7.56 mmol) was added to a solution of 1-(3-aminopropyl)-2-butyl-1H-imidazo[4,5-c]quinolin-4-amine (1.5 g, 5.04 mmol) in 1-methyl-2-pyrrolidinone (75 mL). A solution of 5-dimethylamino-1-naphthalenesulfonyl chloride (1.5 g, 5.55 mmol) in 1-methyl-2-pyrrolidinone was added. The reaction was monitored by HPLC. The reaction mixture was combined with water (500 mL) and the pH was adjusted to 10 with solid potassium carbonate. The resulting yellow precipitate was isolated by filtration, rinsed with water and then purified by column chromatography (silica gel eluting with 1-5% methanol in chloroform). The purified material was recrystallized from acetonitrile to provide 1.76 g of N-[3-(4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl)propyl]-5-(dimethylamino)naphthalene-1-sulfonamide as a solid, m.p. 216.5-217.5° C. Analysis: Calculated for C29H34N6O2S: % C, 65.64; % H, 6.46; % N, 15.84; Found: % C, 65.52; % H, 6.44; % N, 15.90.

Workup

  1. customThe resulting yellow precipitate was isolated by filtration
  2. washrinsed with water
  3. custompurified by column chromatography (silica gel eluting with 1-5% methanol in chloroform)
  4. customThe purified material was recrystallized from acetonitrile

Sources & evidence

ORD record
ord-a9ea08fbdd6a4e668a35066b93f14558
Source dataset
uspto-grants-2005_05
Patent number
US06888000B2

Reaction notes

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