Trifluoroacetic acid → 4(5-Chloro-2,3-methylenedioxypyrid-4-ylamino)-6-methoxy-7-(piperidin-4-ylmethoxy)quinazoline

HRID 2374440

Reaction equation

HRID 2374440 reaction equation
FC(F)(F)C(O)=O.C(OC([N:15]1[CH2:20][CH2:19][CH:18]([CH2:21][O:22][C:23]2[CH:32]=[C:31]3[C:26]([C:27]([NH:33][C:34]4[C:39]([Cl:40])=[CH:38][N:37]=[C:36]5[O:41][CH2:42][O:43][C:35]=45)=[N:28][CH:29]=[N:30]3)=[CH:25][C:24]=2[O:44][CH3:45])[CH2:17][CH2:16]1)=O)(C)(C)C>C(Cl)Cl>[Cl:40][C:39]1[C:34]([NH:33][C:27]2[C:26]3[C:31](=[CH:32][C:23]([O:22][CH2:21][CH:18]4[CH2:19][CH2:20][NH:15][CH2:16][CH2:17]4)=[C:24]([O:44][CH3:45])[CH:25]=3)[N:30]=[CH:29][N:28]=2)=[C:35]2[O:43][CH2:42][O:41][C:36]2=[N:37][CH:38]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 685487457(N-tert-butoxycarbonylpiperidin-4-ylmethoxy)-4-(5-chloro-2,3-methylenedioxypyrid-4-ylamino)-6-methoxyquinazoline

Product 1

HCID 685414644(5-Chloro-2,3-methylenedioxypyrid-4-ylamino)-6-methoxy-7-(piperidin-4-ylmethoxy)quinazolineYield 90.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Trifluoroacetic acid (1 ml) was added to a solution of 7-(N-tert-butoxycarbonylpiperidin-4-ylmethoxy)-4-(5-chloro-2,3-methylenedioxypyrid-4-ylamino)-6-methoxyquinazoline (0.253 g) in methylene chloride (10 ml) and the reaction mixture was stirred at ambient temperature for 1 hour. The reaction mixture was evaporated. Toluene was added to the residue and the mixture was evaporated. The residue was purified by column chromatography on silica (Isolute SCX column) using a 7M methanolic ammonia solution as eluent. There was thus obtained the title compound as a solid (0.187 g); NMR Spectrum: (DMSOd6) 1.25 (m, 2H), 1.75 (d, 2H), 1.93 (m, 1H), 2.54 (m, 2H), 3.0 (d, 2H), 3.93 (s, 3H), 3.98 (d, 2H), 6.17 (s, 2H), 7.15 (s, 1H), 7.76 (s, 1H), 7.78 (s, 1H), 8.23 (s, 1H); Mass Spectrum: M+H+ 444 and 446.

Workup

  1. customThe reaction mixture was evaporated
  2. additionToluene was added to the residue
  3. customthe mixture was evaporated
  4. customThe residue was purified by column chromatography on silica (Isolute SCX column)

Sources & evidence

ORD record
ord-95780a87494844d0ade407a09a3e15b7
Source dataset
uspto-grants-2008_12
Patent number
US07462623B2

Linked notes

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