Acetic Acid → N-{[1,6-Diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-N'-[(3'-{[(3R,5S)-3,5-dimethyl-1-piperazinyl]methyl}-3-biphenylyl)methyl]-1,3-benzenedicarboxamide

HRID 564626Notes

Reaction equation

HRID 564626 reaction equation
[CH2:1]([N:3]1[C:7]2=[N:8][C:9]([CH2:48][CH3:49])=[C:10]([CH2:19][NH:20][C:21]([C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([NH:31][CH2:32][C:33]4[C:34](C)=[C:35]([C:39]5[CH:44]=[CH:43][CH:42]=[C:41]([CH:45]=O)[CH:40]=5)[CH:36]=[CH:37][CH:38]=4)=[O:30])[CH:24]=3)=[O:22])[C:11]([NH:12][CH:13]3[CH2:18][CH2:17][O:16][CH2:15][CH2:14]3)=[C:6]2[CH:5]=[N:4]1)[CH3:2].[CH3:50][C@@H:51]1[CH2:56][NH:55][CH2:54][C@H:53]([CH3:57])[NH:52]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].CC(O)=O>ClCCCl>[CH2:1]([N:3]1[C:7]2=[N:8][C:9]([CH2:48][CH3:49])=[C:10]([CH2:19][NH:20][C:21]([C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([NH:31][CH2:32][C:33]4[CH:34]=[C:35]([C:39]5[CH:44]=[CH:43][CH:42]=[C:41]([CH2:45][N:55]6[CH2:54][C@H:53]([CH3:57])[NH:52][C@H:51]([CH3:50])[CH2:56]6)[CH:40]=5)[CH:36]=[CH:37][CH:38]=4)=[O:30])[CH:24]=3)=[O:22])[C:11]([NH:12][CH:13]3[CH2:14][CH2:15][O:16][CH2:17][CH2:18]3)=[C:6]2[CH:5]=[N:4]1)[CH3:2]

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 5049666Sodium triacetoxyborohydrideHCID 6950261rel-(2R,6S)-2,6-dimethylpiperazineHCID 57813263HCID 57813263, compound

Product 1

HCID 57813325N-{[1,6-Diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-N'-[(3'-{[(3R,5S)-3,5-dimethyl-1-piperazinyl]methyl}-3-biphenylyl)methyl]-1,3-benzenedicarboxamideYield 40.1%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

A mixture of N-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-N′-[(3′-formyl-2-methyl-3-biphenylyl)methyl]-1,3-benzenedicarboxamide (100 mg, 0.000152 mol) in 1,2-dichloroethane (4 mL) with (2R,6S)-2,6-dimethylpiperazine (27.4 mg, 0.00024 mol) and sodium triacetoxyborohydride (68 mg., 0.00032 mol) and AcOH (12 μL) was placed on an oscillating shaker overnight at room temperature. The reaction was quenched with sat. aq. NaHCO3, then extracted with 1,2-dichloroethane (2×). Combined organic extracts were washed with sat. aq. NaCl and dried (Na2SO4) and concentrated to a residue. Purification was carried out on a Gilson HPLC instrument with acetonitrile-water (0.1% TFA) gradient; C18-RP Column. Fractions containing the clean desired product were combined; diluted with EtOAc; washed with sat. aq. NaHCO3; and the aq. phase was back-extracted with EtOAc. Combined organic extracts were washed with sat. aq. NaCl and dried (Na2SO4) and concentrated to a residue. It was taken up in a small amount of 1,2-dichloroethane and transferred to a vial and pumped down to afford the title compound as a pale brown colored solid [45.3 mg (39%)]. LC-MS m/z 757.5 (M+H)+.

Workup

  1. customwas placed on an oscillating shaker overnight at room temperature
  2. customThe reaction was quenched with sat. aq. NaHCO3
  3. extractionextracted with 1,2-dichloroethane (2×)
  4. washCombined organic extracts were washed with sat. aq. NaCl
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated to a residue
  7. customPurification
  8. additionFractions containing the clean desired product
  9. additiondiluted with EtOAc
  10. washwashed with sat. aq. NaHCO3
  11. extractionand the aq. phase was back-extracted with EtOAc
  12. washCombined organic extracts were washed with sat. aq. NaCl
  13. dry with materialdried (Na2SO4)
  14. concentrationconcentrated to a residue

Sources & evidence

ORD record
ord-a5b9471974a64400962936b7b280c849
Source dataset
uspto-grants-2011_11
Patent number
US08067408B2

Reaction notes

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