Trifluoroacetic acid → [3-Chloro-4-(pyridin-2-ylmethoxy)-phenyl]-(5,6,7,8-tetrahydro-9-thia-1,3,7-triaza-fluoren-4-yl)amine

HRID 1887411Notes

Reaction equation

HRID 1887411 reaction equation
C(OC([N:8]1[CH2:20][C:19]2[S:18][C:17]3[N:16]=[CH:15][N:14]=[C:13]([NH:21][C:22]4[CH:27]=[CH:26][C:25]([O:28][CH2:29][C:30]5[CH:35]=[CH:34][CH:33]=[CH:32][N:31]=5)=[C:24]([Cl:36])[CH:23]=4)[C:12]=3[C:11]=2[CH2:10][CH2:9]1)=O)(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[Cl:36][C:24]1[CH:23]=[C:22]([NH:21][C:13]2[C:12]3[C:11]4[CH2:10][CH2:9][NH:8][CH2:20][C:19]=4[S:18][C:17]=3[N:16]=[CH:15][N:14]=2)[CH:27]=[CH:26][C:25]=1[O:28][CH2:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][N:31]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 595869744-[3-Chloro-4-(pyridin-2-ylmethoxy)-phenylamino]-5,8-dihydro-6H-9-thia-1,3,7-triaza-fluorene-7-carboxylic acid tert-butyl ester

Product 1

HCID 59586947[3-Chloro-4-(pyridin-2-ylmethoxy)-phenyl]-(5,6,7,8-tetrahydro-9-thia-1,3,7-triaza-fluoren-4-yl)amineYield 68.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a 4-[3-Chloro-4-(pyridin-2-ylmethoxy)-phenylamino]-5,8-dihydro-6H-9-thia-1,3,7-triaza-fluorene-7-carboxylic acid tert-butyl ester (3.6 g, 6.87 mmol) in DCM (45 mL) solution was added TFA (5.2 mL, 68.7 mmol, 10 equiv). The reaction mixture was stirred at rt for 8 h. The solution mixture was concentrated in vacuo. To the residue was added sat. NaHCO3 solution and stirred at rt for 1.5 h. The mixture was then filtered and washed with water. The damp solid was placed in a vacuum oven and dried for overnight to yield a yellow solid (2.0 g, 67%). 1H NMR (DMSO-d6) δ 9.41 (broad s, 2H), 8.71 (d, J=5.0 Hz, 1H), 8.40 (s, 1H), 8.11 (t, 1H), 7.75 (m, 2H), 7.57 (m, 1H), 7.53 (dd, J=2.7, 9.0 Hz, 1H), 7.25 (d, J=9.4 Hz, 1H), 5.35 (s, 2H), 4.48 (m, 2H), 3.49 (m, 2H), 3.41 (m, 2H); LCMS RT=2.11 min, [M+Na]+=446.1.

Workup

  1. concentrationThe solution mixture was concentrated in vacuo
  2. additionTo the residue was added sat. NaHCO3 solution
  3. stirringstirred at rt for 1.5 h
  4. filtrationThe mixture was then filtered
  5. washwashed with water
  6. customdried for overnight

Sources & evidence

ORD record
ord-96ff19f1ddb5494f8d7810c03da41960
Source dataset
uspto-grants-2013_08
Patent number
US08501755B2

Reaction notes

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