p-Toluenesulfonic acid → HCID 24851913, compound

HRID 1095773Notes

Reaction equation

HRID 1095773 reaction equation
C1(C)C=CC(S(O)(=O)=O)=CC=1.[CH:12]1([O:17][C:18]2[C:19]([O:47][CH3:48])=[CH:20][CH:21]=[C:22]3[C:27]=2[N:26]([CH2:28][CH2:29][O:30]C2CCCCO2)[C:25](=[O:37])[CH:24]=[C:23]3[NH:38][C:39]2[C:44]([Cl:45])=[CH:43][N:42]=[CH:41][C:40]=2[Cl:46])[CH2:16][CH2:15][CH2:14][CH2:13]1>CO>[CH:12]1([O:17][C:18]2[C:19]([O:47][CH3:48])=[CH:20][CH:21]=[C:22]3[C:27]=2[N:26]([CH2:28][CH2:29][OH:30])[C:25](=[O:37])[CH:24]=[C:23]3[NH:38][C:39]2[C:40]([Cl:46])=[CH:41][N:42]=[CH:43][C:44]=2[Cl:45])[CH2:16][CH2:15][CH2:14][CH2:13]1

Participants

4

Reactant 2

HCID 6101p-Toluenesulfonic acidHCID 66781834HCID 66781834, compound

Product 1

HCID 24851913HCID 24851913, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

para-Toluenesulfonic acid (172 mg, 1.0 mmol) was added to a solution of 8-(cyclopentyloxy)-4-(3,5-dichloropyridin-4-ylamino)-7-methoxy-1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)quinolin-2(1H)-one (2.4 g, 4.4 mmol) and methanol (100 mL). After stirring overnight, the reaction was concentrated, diluted with dichloromethane (100 mL), and then washed with saturated NaHCO3 (20 mL) followed by water (20 mL). The organic layer was dried, filtered, concentrated, and recrystallized from dichloromethane/petroleum ether (1:2) to give 8-(cyclopentyloxy)-4-(3,5-dichloropyridin-4-ylamino)-1-(2-hydroxyethyl)-7-methoxyquinolin-2(1H)-one: 1H NMR (400 MHz, DMSO-d6): δ 8.74 (s, 2H), 8.73 (s, 1H), 7.91 (d, 1H), 7.11 (d, 1H), 4.92 (s, 1H), 4.65 (t, 2H), 4.59 (m, 1H), 4.50 (t, 1H), 3.90 (s, 3H), 3.32 (m 2H), 1.80-1.48 (m, 8H); MS (ESI): 463.9.

Workup

  1. concentrationthe reaction was concentrated
  2. additiondiluted with dichloromethane (100 mL)
  3. washwashed with saturated NaHCO3 (20 mL)
  4. customThe organic layer was dried
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customrecrystallized from dichloromethane/petroleum ether (1:2)

Sources & evidence

ORD record
ord-974107847bd3429d929da347c7ef9c41
Source dataset
uspto-grants-2012_03
Patent number
US08138205B2

Reaction notes

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