Acetic Acid → HCID 44193348, compound

HRID 662117Notes

Reaction equation

HRID 662117 reaction equation
[Cl:1][C:2]1[C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([CH:14]=O)[CH:9]=2)=[CH:6][C:5]([CH2:16][NH:17][C:18]([C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([C:26]([NH:28][CH2:29][C:30]3[C:31]([NH:43][CH:44]4[CH2:49][CH2:48][O:47][CH2:46][CH2:45]4)=[C:32]4[CH:40]=[N:39][N:38]([CH2:41][CH3:42])[C:33]4=[N:34][C:35]=3[CH2:36][CH3:37])=[O:27])[N:21]=2)=[O:19])=[CH:4][CH:3]=1.[CH3:50][N:51]1[CH2:56][CH2:55][NH:54][CH2:53][CH2:52]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C>C(Cl)Cl>[Cl:1][C:2]1[C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([CH2:14][N:54]3[CH2:55][CH2:56][N:51]([CH3:50])[CH2:52][CH2:53]3)[CH:9]=2)=[CH:6][C:5]([CH2:16][NH:17][C:18]([C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([C:26]([NH:28][CH2:29][C:30]3[C:31]([NH:43][CH:44]4[CH2:45][CH2:46][O:47][CH2:48][CH2:49]4)=[C:32]4[CH:40]=[N:39][N:38]([CH2:41][CH3:42])[C:33]4=[N:34][C:35]=3[CH2:36][CH3:37])=[O:27])[N:21]=2)=[O:19])=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 531671-MethylpiperazineHCID 5049666Sodium triacetoxyborohydrideHCID 57819381HCID 57819381, compound

Product 1

HCID 44193348HCID 44193348, compoundYield 33.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of N-[(6-chloro-3′-formyl-3-biphenylyl)methyl]-N′-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-2,6-pyridinedicarboxamide (50 mg, 0.074 mmol), 1-methylpiperazine (7.36 mg, 0.074 mmol), sodium triacetoxyborohydride (31.2 mg, 0.147 mmol) and acetic acid (5.05 μL, 0.088 mmol) in DCM (1 mL) was stirred at room temperature over the weekend. The reaction mixture was quenched with saturated NaHCO3, and extracted with DCM twice. The combined organic layers were concentrated under vacuum to give a crude residue. It was purified with a Gilson HPLC (with 0.1% TFA in the solvents), eluting with 10 to 70% CH3CN in water at a flow rate of 20 mL/min. The product fractions were combined, converted to the free base with saturated NaHCO3 and the basified solution was extracted with ethyl acetate twice. The combined organic layers were washed with brine, dried over sodium sulfate, filtered and then concentrated under vacuum to give N-({6-chloro-3′-[(4-methyl-1-piperazinyl)methyl]-3-biphenylyl}methyl)-N′-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-2,6-pyridinedicarboxamide as a solid (19 mg, 33.8%). LC-MS m/z 765 (M+H)+, 1.44 min (ret time).

Workup

  1. customThe reaction mixture was quenched with saturated NaHCO3
  2. extractionextracted with DCM twice
  3. concentrationThe combined organic layers were concentrated under vacuum
  4. customto give a crude residue
  5. customIt was purified with a Gilson HPLC (with 0.1% TFA in the solvents),
  6. washeluting with 10 to 70% CH3CN in water at a flow rate of 20 mL/min
  7. extractionthe basified solution was extracted with ethyl acetate twice
  8. washThe combined organic layers were washed with brine
  9. dry with materialdried over sodium sulfate
  10. filtrationfiltered
  11. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-06982aafb5034b44b5c32fef16e0a188
Source dataset
uspto-grants-2011_12
Patent number
US08084449B2

Reaction notes

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