Tributylphosphine → HCID 22478214, compound

HRID 1838544Notes

Reaction equation

HRID 1838544 reaction equation
[OH:1][CH2:2][CH2:3][N:4]1[CH2:9][CH2:8][S:7][CH2:6][CH2:5]1.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.[Cl:28][C:29]1[CH:48]=[CH:47][C:32]([NH:33][C:34]2[C:43]3[C:38](=[CH:39][C:40](O)=[C:41]([O:44][CH3:45])[CH:42]=3)[N:37]=[CH:36][N:35]=2)=[C:31]([F:49])[CH:30]=1.C(P(CCCC)CCCC)CCC>C(Cl)Cl.CCOCC>[Cl:28][C:29]1[CH:48]=[CH:47][C:32]([NH:33][C:34]2[C:43]3[C:38](=[CH:39][C:40]([O:1][CH2:2][CH2:3][N:4]4[CH2:9][CH2:8][S:7][CH2:6][CH2:5]4)=[C:41]([O:44][CH3:45])[CH:42]=3)[N:37]=[CH:36][N:35]=2)=[C:31]([F:49])[CH:30]=1

Participants

7

Reactant 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 5756592-(Thiomorpholin-4-yl)ethan-1-olHCID 1355137204-(4-Chloro-2-fluorophenylamino)-7-hydroxy-6-methoxyquinazoline

Product 1

HCID 22478214HCID 22478214, compoundYield 22.3%

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 6344DichloromethaneSolvent2×

Procedure

4-(2-Hydroxyethyl)thiomorpholine (114 mg, 0.78 mmol), (J. Am. Chem. Soc. 1934. 56, 1720), in methylene chloride (1 ml) followed by 1,1′-(azodicarbonyl)dipiperidine (525 mg. 2.08 mmol) were added to a stirred solution of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (225 mg, 0.70 mmol), (prepared as described for the starting material in Example 2), and tributylphosphine (0.51 ml, 2.08 mmol) in methylene chloride (10 ml) under nitrogen. The mixture was stirred for 3.5 hours and allowed to stand for a further 18 hours. Ether (8 ml) was added, the precipitate removed by filtration and the solvent removed from the filtrate by evaporation. The residue was dissolved in acetone and ethereal hydrogen chloride (2.5 ml of a 1M solution) added. The precipitated product was collected by filtration and purified by column chromatography eluting with methylene chloride/methanol/aqueous ammonia (150/8/1). The purified product was triturated with ether to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-thiomorpholinoethoxy)quinazoline (70 mg, 22%) as a pale yellow solid.

Workup

  1. custom(prepared
  2. waitto stand for a further 18 hours
  3. customthe precipitate removed by filtration
  4. customthe solvent removed from the filtrate by evaporation
  5. dissolutionThe residue was dissolved in acetone
  6. additionethereal hydrogen chloride (2.5 ml of a 1M solution) added
  7. filtrationThe precipitated product was collected by filtration
  8. custompurified by column chromatography
  9. washeluting with methylene chloride/methanol/aqueous ammonia (150/8/1)
  10. customThe purified product was triturated with ether

Sources & evidence

ORD record
ord-f343a036577747778e8ce3b845f1e41c
Source dataset
uspto-grants-2004_01
Patent number
US06673803B2

Reaction notes

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