(Diethylamino)sulfur trifluoride → (4,5-Dichloro-2-fluoro-phenyl)-{7-[2-(2-fluoro-ethoxy)-ethoxy]-6-nitro-quinazolin-4-yl}-amine

HRID 1255975Notes

Reaction equation

HRID 1255975 reaction equation
CCN(S(F)(F)[F:7])CC.[Cl:10][C:11]1[C:16]([Cl:17])=[CH:15][C:14]([NH:18][C:19]2[C:28]3[C:23](=[CH:24][C:25]([O:32][CH2:33][CH2:34][O:35][CH2:36][CH2:37]O)=[C:26]([N+:29]([O-:31])=[O:30])[CH:27]=3)[N:22]=[CH:21][N:20]=2)=[C:13]([F:39])[CH:12]=1.C(=O)(O)[O-].[Na+]>ClCCl.O>[Cl:10][C:11]1[C:16]([Cl:17])=[CH:15][C:14]([NH:18][C:19]2[C:28]3[C:23](=[CH:24][C:25]([O:32][CH2:33][CH2:34][O:35][CH2:36][CH2:37][F:7])=[C:26]([N+:29]([O-:31])=[O:30])[CH:27]=3)[N:22]=[CH:21][N:20]=2)=[C:13]([F:39])[CH:12]=1

Participants

6

Reactant 3

HCID 123472(Diethylamino)sulfur trifluorideHCID 516892Sodium BicarbonateHCID 692669552-{2-[4-(4,5-Dichloro-2-fluoro-phenylamino)-6-nitro-quinazoline-7-yloxy]-ethoxy}-ethanol

Product 1

HCID 86618844(4,5-Dichloro-2-fluoro-phenyl)-{7-[2-(2-fluoro-ethoxy)-ethoxy]-6-nitro-quinazolin-4-yl}-amineYield 78.4%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent

Procedure

DAST (0.16 gram, 1 mmol) was added slowly to a cooled solution (−78° C.) of Compound 29a (0.047 gram, 0.1 mmol) in dichloromethane (2 ml) and the resulting mixture was allowed to warm to room temperature and was thereafter stirred for 12 hours. The reaction mixture was then poured to a saturated solution of sodium bicarbonate), diluted with water, extracted thrice with dichloromethane, washed with brine, and dried over sodium sulfate. Removal of the solvent under reduced pressure afforded Compound 35a (0.036 gram, 78% yield) having a purity of 94%, as determined by HPLC. The compound was used in the following procedures without further purification.

Workup

  1. extractionextracted thrice with dichloromethane
  2. washwashed with brine
  3. dry with materialdried over sodium sulfate
  4. customRemoval of the solvent under reduced pressure

Sources & evidence

ORD record
ord-b373c4aeec224406a66f15adac73452b
Source dataset
uspto-grants-2013_06
Patent number
US08461166B2

Reaction notes

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