Methanol → 4-amino-1-[(2,2-dimethyl[1,3]dioxolan-4-yl)methyl]-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-7-ol

HRID 598389노트

반응식

HRID 598389 반응식
C([O:8][C:9]1[CH:10]=[CH:11][C:12]2[C:13]3[N:22]([CH2:23][CH:24]4[CH2:28][O:27][C:26]([CH3:30])([CH3:29])[O:25]4)[C:21]([CH2:31][O:32][CH2:33][CH3:34])=[N:20][C:14]=3[C:15]([NH2:19])=[N:16][C:17]=2[CH:18]=1)C1C=CC=CC=1.CO>C(#N)C.[OH-].[Pd+2].[OH-]>[NH2:19][C:15]1[C:14]2[N:20]=[C:21]([CH2:31][O:32][CH2:33][CH3:34])[N:22]([CH2:23][CH:24]3[CH2:28][O:27][C:26]([CH3:30])([CH3:29])[O:25]3)[C:13]=2[C:12]2[CH:11]=[CH:10][C:9]([OH:8])=[CH:18][C:17]=2[N:16]=1

참가 물질

5

반응물 2

HCID 887MethanolHCID 575453177-benzyloxy-1-[(2,2-dimethyl[1,3]dioxolan-4-yl)methyl]-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-4-ylamine

생성물 1

HCID 1360751984-amino-1-[(2,2-dimethyl[1,3]dioxolan-4-yl)methyl]-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-7-ol

시약·촉매·용매 2

HCID 9942167Palladium hydroxide촉매HCID 6342Acetonitrile용매

실험 절차

Palladium hydroxide (Pearlman's catalyst) (20% palladium w/w on carbon, 900 mg) was added to a solution of 7-benzyloxy-1-[(2,2-dimethyl[1,3]dioxolan-4-yl)methyl]-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-4-ylamine (9.00 g, 19.46 mmol, 1 eq), prepared as described in Example 152, in acetonitrile (300 mL) and methanol (300 mL) in a sealed vessel and the reaction mixture was placed under hydrogen pressure (30 psi, 2.1×105 Pa) for 24 hours. The crude reaction mixture was filtered through a layer of CELITE filter aid and the filtrate was concentrated under reduced pressure and triturated with acetonitrile. The resulting crystalline material was collected by filtration and washed with acetonitrile to afford 3.66 of 4-amino-1-[(2,2-dimethyl[1,3]dioxolan-4-yl)methyl]-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-7-ol as an off-white solid. Additional product (0.36 g) was isolated from the filtrate of the initial trituration by concentration under reduced pressure, trituration with acetonitrile, and filtration for a total yield of 4.02 g of 4-amino-1-[(2,2-dimethyl[1,3]dioxolan-4-yl)methyl]-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-7-ol, isolated as an off-white solid, mp 240-242° C. 1H-NMR (300 MHz, DMSO) δ 9.51 (br s, 1H), 7.96 (d, J=8.9 Hz, 1H), 6.95 (d, J=2.5 Hz, 1H), 6.76 (dd, J=8.9, 2.6 Hz, 1H), 6.46 (br s, 2H), 4.92-4.60 (m, 4H), 4.57-4.45 (m, 1H), 4.18 (dd, J=8.6, 6.4 Hz, 1H), 3.83 (dd, J=8.6, 6.5 Hz, 1H), 3.54 (q, J=7.0 Hz, 2H), 1.34 (s, 3H), 1.19 (s, 3H), 1.15 (t, J=7.0 Hz, 3H); 13C-NMR (75 MHz, DMSO) δ 156.41, 152.0, 148.1, 147.2, 133.9, 124.4, 121.7, 111.7, 109.7, 109.0, 107.9, 74.4, 66.0, 65.2, 64.3, 47.6, 26.2, 24.9, 14.8; MS (APCI) m/z 373.0 (M+H)+; Anal, calcd for C19H24N4O4: C, 61.28; H, 6.50; N, 15.04. Found: C, 61.12; H, 6.53; N, 14.98.

후처리

  1. customprepared
  2. customThe crude reaction mixture
  3. filtrationwas filtered through a layer of CELITE
  4. filtrationfilter aid
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customtriturated with acetonitrile
  7. filtrationThe resulting crystalline material was collected by filtration
  8. washwashed with acetonitrile

출처 및 근거

ORD 기록
ord-c16bb5d6479e4e1d99cb8a6819dfc4d9
출처 데이터셋
uspto-grants-2011_03
특허 번호
US07897597B2

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