Acetic Acid → HCID 67059610, compound

HRID 600417Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N+:31]([O-])=O)=[C:6]([NH:8][C:9]2[N:17]=[C:16]3[C:12]([N:13]=[C:14]([CH3:24])[N:15]3[CH:18]3[CH2:23][CH2:22][O:21][CH2:20][CH2:19]3)=[C:11]([C:25]3[CH:30]=[CH:29][N:28]=[CH:27][CH:26]=3)[N:10]=2)[CH:7]=1.C(O)(=O)C.O.[OH-].[NH4+]>[Fe].C(O)C>[Cl:1][C:2]1[CH:7]=[C:6]([NH:8][C:9]2[N:17]=[C:16]3[C:12]([N:13]=[C:14]([CH3:24])[N:15]3[CH:18]3[CH2:23][CH2:22][O:21][CH2:20][CH2:19]3)=[C:11]([C:25]3[CH:26]=[CH:27][N:28]=[CH:29][CH:30]=3)[N:10]=2)[C:5]([NH2:31])=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 90 °C

Procedure

To a vial containing N-(5-chloro-2-nitrophenyl)-8-methyl-6-(pyridin-4-yl)-9-(tetrahydro-2H-pyran-4-yl)-9H-purin-2-amine (16.3 mg, 0.035 mmol) was added glacial acetic acid (1 mL), water (2.5 mL) and ethanol (5 mL), followed by iron powder (20 mg, 0.35 mmol, 10 equiv.) and the resulting mixture heated at 90° C. for 15 min (HPLC monitoring). The reaction mixture was left to cool down to room temperature, concentrated ammonium hydroxide solution was added to bring the pH to basic, and the mixture was stirred for 10 min. The aqueous layer was extracted with ethyl acetate, the combined organic layers were washed with brine, dried (anhydrous Na2SO4), and the solvent removed in vacuo to give the desired product as a pale yellow solid (yield quantitative). This material was used in the next step without further purification. MS (EI) m/z 436.4 (MH)+.

Workup

waitThe reaction mixture was left
temperatureto cool down to room temperature
extractionThe aqueous layer was extracted with ethyl acetate
washthe combined organic layers were washed with brine
dry with materialdried (anhydrous Na2SO4)
customthe solvent removed in vacuo

Sources & evidence

ORD record: ord-d9cd6aed9880493c9b5b2d60bd8a16c5
Source dataset: uspto-grants-2011_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07902187B2

Reaction notes

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