Triphenylphosphine → 6-Methoxy-4-(2-methylindol-5-yloxy)-7-(2-(4-pyridyloxy)ethoxy)quinazoline

HRID 1791612Notes

Reaction equation

HRID 1791612 reaction equation
[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6]([O:12][C:13]3[CH:14]=[C:15]4[C:19](=[CH:20][CH:21]=3)[NH:18][C:17]([CH3:22])=[CH:16]4)=[N:7][CH:8]=[N:9]2)=[CH:4][C:3]=1[O:23][CH3:24].O[CH2:26][CH2:27][O:28][C:29]1[CH:34]=[CH:33][N:32]=[CH:31][CH:30]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C(Cl)Cl>[CH3:24][O:23][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:2]=1[O:1][CH2:26][CH2:27][O:28][C:29]1[CH:34]=[CH:33][N:32]=[CH:31][CH:30]=1)[N:9]=[CH:8][N:7]=[C:6]2[O:12][C:13]1[CH:14]=[C:15]2[C:19](=[CH:20][CH:21]=1)[NH:18][C:17]([CH3:22])=[CH:16]2

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 33760122-(Pyridin-4-yloxy)ethanolHCID 1357631087-hydroxy-6-methoxy-4-(2-methyl-1H-indol-5-yloxy)quinazoline

Product 1

HCID 220307676-Methoxy-4-(2-methylindol-5-yloxy)-7-(2-(4-pyridyloxy)ethoxy)quinazolineYield 54%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 7-hydroxy-6-methoxy-4-(2-methylindol-5-yloxy)quinazoline (193 mg, 0.6 mmol), (prepared as described in Example 49), 4-(2-hydroxyethoxy)pyridine (166 mg, 1.2 mmol), (J. Chem. Soc. Perkin II, 1987, 1867), in methylene chloride (5 ml) containing triphenylphosphine (330 mg, 1.26 mmol) and diisopropyl azodicarboxylate (255 mg, 1.26 mmol) was stirred at ambient temperature for 2 hours. The precipitate was filtered, triturated with ether followed by ethyl acetate, and dried under vacuum to give 6-methoxy-4-(2-methylindol-5-yloxy)-7-(2-(4-pyridyloxy)ethoxy)quinazoline (142 mg, 54%).

Workup

  1. filtrationThe precipitate was filtered
  2. customtriturated with ether
  3. customdried under vacuum

Sources & evidence

ORD record
ord-dc971279b9e240d087147068c0457939
Source dataset
uspto-grants-2006_07
Patent number
US07074800B1

Reaction notes

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