Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1) → 2-[2-(5-Bromo-1H-indol-3-yl)ethyl]-3-{3-[(propan-2-yl)oxy]phenyl}quinazolin-4(3H)-one

HRID 1614204Notes

Reaction equation

HRID 1614204 reaction equation
CC1(C)O[C:6](=O)[CH:5]([CH2:9][C:10]2[C:18]3[C:13](=[CH:14][CH:15]=[C:16]([Br:19])[CH:17]=3)[NH:12][CH:11]=2)C(=O)O1.[NH2:22][C:23]1[CH:41]=[CH:40][CH:39]=[CH:38][C:24]=1[C:25]([NH:27][C:28]1[CH:33]=[CH:32][CH:31]=[C:30]([O:34][CH:35]([CH3:37])[CH3:36])[CH:29]=1)=[O:26].CC1C=CC(S([O-])(=O)=O)=CC=1.C1C=C[NH+]=CC=1>N1C=CC=CC=1>[Br:19][C:16]1[CH:17]=[C:18]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]=[C:10]2[CH2:9][CH2:5][C:6]1[N:27]([C:28]2[CH:33]=[CH:32][CH:31]=[C:30]([O:34][CH:35]([CH3:36])[CH3:37])[CH:29]=2)[C:25](=[O:26])[C:24]2[C:23](=[CH:41][CH:40]=[CH:39][CH:38]=2)[N:22]=1

Participants

5

Reactant 3

HCID 466102Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 148430222-Amino-N-{3-[(propan-2-yl)oxy]phenyl}benzamideHCID 15881114HCID 15881114, compound

Product 1

HCID 43554502-[2-(5-Bromo-1H-indol-3-yl)ethyl]-3-{3-[(propan-2-yl)oxy]phenyl}quinazolin-4(3H)-one

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

A solution of 3-(2,2-dimethyl-4,6-dioxo-1,3-dioxane-5-yl)methyl-5-bromoindole (4.12 g, 12 mmol), 2-amino-N-(3-isopropoxyphenyl)benzamide (3.48 g, 13 mmol), and PPTS (1.64 g, 6.5 mmol) in 50 ml of pyridine was refluxed for 3.5 days. The reaction mixture was then evaporated in vacuo to dryness, and the residue was taken up in methylene chloride. The product was chromatographed (30% ethyl acetate/hexanes, SiO2) and the title product (2.13 g, 36%) crystallized by allowing the fractions containing product to evaporate: mp 179°-181° C.

Workup

  1. customThe reaction mixture was then evaporated in vacuo to dryness
  2. customThe product was chromatographed (30% ethyl acetate/hexanes, SiO2)
  3. customthe title product (2.13 g, 36%) crystallized
  4. additioncontaining product
  5. customto evaporate

Sources & evidence

ORD record
ord-8158a930324944e6ae5bf0a8ebcffa4e
Source dataset
uspto-grants-1993_03
Patent number
US05196427

Reaction notes

Loading…