Oxalyl chloride → HCID 178488207, compound

HRID 749036Notes

Reaction equation

HRID 749036 reaction equation
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH:3]=[C:2]1[C:10]([OH:12])=O.C(Cl)(=O)C(Cl)=O.[NH2:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]2[C:34]3[C:29](=[N:30][CH:31]=[N:32][C:33]=3[NH2:35])[N:28]([C@H:36]3[CH2:41][CH2:40][C@H:39]([N:42]4[CH2:47][CH2:46][N:45]([CH3:48])[CH2:44][CH2:43]4)[CH2:38][CH2:37]3)[N:27]=2)=[CH:22][C:21]=1[O:49][CH3:50]>ClCCl.CN(C=O)C.N1C=CC=CC=1>[NH2:35][C:33]1[N:32]=[CH:31][N:30]=[C:29]2[N:28]([C@H:36]3[CH2:41][CH2:40][C@H:39]([N:42]4[CH2:43][CH2:44][N:45]([CH3:48])[CH2:46][CH2:47]4)[CH2:38][CH2:37]3)[N:27]=[C:26]([C:23]3[CH:24]=[CH:25][C:20]([NH:19][C:10]([C:2]4[NH:1][C:9]5[C:4]([CH:3]=4)=[CH:5][CH:6]=[CH:7][CH:8]=5)=[O:12])=[C:21]([O:49][CH3:50])[CH:22]=3)[C:34]=12

Participants

7

Reactant 3

HCID 65578Oxalyl chlorideHCID 72899Indole-2-carboxylic acidHCID 178488198HCID 178488198, compound

Product 1

HCID 178488207HCID 178488207, compoundYield 47%

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideCatalystHCID 1049PyridineSolventHCID 6344DichloromethaneSolvent2×

Procedure

To 1H-2-indolecarboxylic acid (0.738 g, 4.58 mmol) in dichloromethane (14 mL) was added oxalyl chloride (4 mL, 45.8 mmol) and DMF (1 drop). The reaction mixture was stirred overnight. Solvent was evaporated and the residue was dissolved in dichloromethane (5 mL). Half of the dichloromethane solution (2.5 mL) was added to a solution of trans-3-(4-amino-3-methoxyphenyl)-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (0.50 g, 1.145 mmol) in pyridine (6 mL) at 0° C. After 30 minutes, the solid as collected by filtration. Water was then added to the solid and the pH of the solution was adjusted to 10 with sodium hydroxide (1.0N). The aqueous was extracted with dichloromethane. The combined organic layer was washed with water then brine, dried over MgSO4, filtered and evaporated. The residue was purified by flash column chromatography using dichloromethane/methanol (80:20) as mobile phase to give trans-N2-(4-{4-amino-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}-2-methoxyphenyl)-1H-2-indolecarboxamide (0.312 g, 47%). 1H NMR (DMSO-d6) δ 1.49 (m, 2H), 2.05 (m, 6H), 2.15 (s, 3H), 2.32 (m, 5H), 2.51 (m, 4H), 3.97 (s, 3H), 4.66 (m, 1H), 7.10 (m, 1H), 7.22 (m 1H), 7.30 (d, J=7.98 Hz, 1H), 8.11 (d, J=8.14 Hz, 1H), 8.24 (s, 1H), 9.44 (s, 1H).

Workup

  1. customSolvent was evaporated
  2. dissolutionthe residue was dissolved in dichloromethane (5 mL)
  3. waitAfter 30 minutes
  4. filtrationthe solid as collected by filtration
  5. additionWater was then added to the solid
  6. extractionThe aqueous was extracted with dichloromethane
  7. washThe combined organic layer was washed with water
  8. dry with materialbrine, dried over MgSO4
  9. filtrationfiltered
  10. customevaporated
  11. customThe residue was purified by flash column chromatography

Sources & evidence

ORD record
ord-06b44dc0e85441aea0c6fbfdf2965b5b
Source dataset
uspto-grants-2008_07
Patent number
US07400979B2

Reaction notes

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