Hydrochloric Acid → 4-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)-1-cyclohexanone

HRID 897443Notes

Reaction equation

HRID 897443 reaction equation
O1[C:5]2([CH2:10][CH2:9][CH:8]([N:11]3[C:15]4=[N:16][CH:17]=[N:18][C:19]([NH2:20])=[C:14]4[C:13]([C:21]4[CH:26]=[CH:25][C:24]([O:27][C:28]5[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=5)=[CH:23][CH:22]=4)=[N:12]3)[CH2:7][CH2:6]2)[O:4]CC1.Cl>CC(C)=O>[NH2:20][C:19]1[N:18]=[CH:17][N:16]=[C:15]2[N:11]([CH:8]3[CH2:7][CH2:6][C:5](=[O:4])[CH2:10][CH2:9]3)[N:12]=[C:13]([C:21]3[CH:22]=[CH:23][C:24]([O:27][C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=4)=[CH:25][CH:26]=3)[C:14]=12

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 223467671-(1,4-dioxaspiro[4.5]dec-8-yl)-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine2×

Product 1

HCID 223468934-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)-1-cyclohexanoneYield 90%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

To 1-(1,4-dioxaspiro[4.5]dec-8-yl)-3-(4-phenoxyphenyl)-pyrazolo[3,4d]pyrimidin4-ylamine (Compound 9) (4.2 g, 95 mmol) in acetone (200 mL) was added HCl (5N, 50 mL) dropwise. Stir at room temperature for 24 hrs. Evaporate the acetone and basify with NaOH (5N, 60 mL). Extract with EtOAc (3×200 mL). Dry, filter and evaporate to leave a solid which was triturated with EtOAc:Et2O (1:20) and filtered to give 4-[4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-cyclohexanone as a cream solid (3.4 g, 90%), m. pt. 203-205° C.1H NMR (400 MHz, d6-DMSO)8.28 (1H, s), 7.66 (2H, m), 7.44 (2H, m), 7.08-7.20 (5H, m), 6.1-7.3 (2H, bs), 5.26 (1H, m), 2.71 (2H, m), 2.41 (4H, m), 2.24 (2H, m) HPLC: Tr=15.43 mins, 95%

Workup

  1. customEvaporate the acetone
  2. extractionExtract with EtOAc (3×200 mL)
  3. customDry
  4. filtrationfilter
  5. customevaporate
  6. customto leave a solid which
  7. customwas triturated with EtOAc:Et2O (1:20)
  8. filtrationfiltered

Sources & evidence

ORD record
ord-201aa41027a74df184821002e1f4db50
Source dataset
uspto-grants-2005_07
Patent number
US06921763B2

Reaction notes

Loading…