Triethylamine → tert-butyl 7-(6-(4-nitrophenyl)-1-(2,2,2-trifluoroethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-9-oxa-3,7-diazabicyclo[3.3.1]nonane-3-carboxylate

HRID 1093198Notes

Reaction equation

Cl[C:2]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([N+:14]([O-:16])=[O:15])=[CH:10][CH:9]=2)[N:5]=[C:4]2[N:17]([CH2:20][C:21]([F:24])([F:23])[F:22])[N:18]=[CH:19][C:3]=12.[CH:25]12[O:33][CH:29]([CH2:30][NH:31][CH2:32]1)[CH2:28][N:27]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:26]2.C(N(CC)CC)C>C(O)C>[N+:14]([C:11]1[CH:12]=[CH:13][C:8]([C:6]2[N:5]=[C:4]3[N:17]([CH2:20][C:21]([F:24])([F:23])[F:22])[N:18]=[CH:19][C:3]3=[C:2]([N:31]3[CH2:32][CH:25]4[O:33][CH:29]([CH2:28][N:27]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:26]4)[CH2:30]3)[N:7]=2)=[CH:9][CH:10]=1)([O-:16])=[O:15]

Participants

Conditions

Temperature: 150 °C

Procedure

To a Smith process vial containing a suspension of 4-chloro-6-(4-nitro-phenyl)-1-(2,2,2-trifluoro-ethyl)-1H-pyrazolo[3,4-d]pyrimidine (0.50 g, 1.4 mmol) and tert-butyl 9-oxa-3,7-diazabicyclo[3.3.1]nonane-3-carboxylate (0.34 g, 1.5 mmol) in ethanol (10 mL) was added triethylamine (0.55 mL, 4.2 mmol). The mixture was heated in the microwave reactor for 12 minutes at 150° C. The precipitate was collected by Buchner filtration, washed with methanol, and dried under house vacuum to provide tert-butyl 7-(6-(4-nitrophenyl)-1-(2,2,2-trifluoroethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-9-oxa-3,7-diazabicyclo[3.3.1]nonane-3-carboxylate as a pale yellow solid (0.54 g, 70%). MS (ES+): 550.2 (M+H)+

Workup

additionTo a Smith process vial containing
filtrationThe precipitate was collected by Buchner filtration
washwashed with methanol
customdried under house vacuum

Sources & evidence

ORD record: ord-405cf1a5a47b4adeae2f53973c4a3445
Source dataset: uspto-grants-2012_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08129371B2

Reaction notes

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