1-Methylpiperazine → 2-(1H-Indazol-4-yl)-6-(4-methyl-piperazin-1-ylmethyl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidine

HRID 2403348Notes

Reaction equation

HRID 2403348 reaction equation
[NH:1]1[C:9]2[C:4](=[C:5]([C:10]3[N:11]=[C:12]([N:21]4[CH2:26][CH2:25][O:24][CH2:23][CH2:22]4)[C:13]4[S:18][C:17]([CH:19]=O)=[CH:16][C:14]=4[N:15]=3)[CH:6]=[CH:7][CH:8]=2)[CH:3]=[N:2]1.[CH3:27][N:28]1[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C([O-])(O)=O.[Na+]>ClCCCl.ClCCl.C(O)(=O)C>[NH:1]1[C:9]2[C:4](=[C:5]([C:10]3[N:11]=[C:12]([N:21]4[CH2:22][CH2:23][O:24][CH2:25][CH2:26]4)[C:13]4[S:18][C:17]([CH2:19][N:31]5[CH2:32][CH2:33][N:28]([CH3:27])[CH2:29][CH2:30]5)=[CH:16][C:14]=4[N:15]=3)[CH:6]=[CH:7][CH:8]=2)[CH:3]=[N:2]1

Participants

8

Reactant 4

HCID 531671-MethylpiperazineHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 236508362-(1H-Indazol-4-yl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidine-6-carbaldehyde

Product 1

HCID 115324722-(1H-Indazol-4-yl)-6-(4-methyl-piperazin-1-ylmethyl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidineYield 28.2%

Reagents, catalysts & solvents 3

HCID 111,2-DichloroethaneSolventHCID 176Acetic AcidSolventHCID 6344DichloromethaneSolvent

Procedure

To a mixture of 2-(1H-Indazol-4-yl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidine-6-carbaldehyde (91 mg, 0.26 mmol), 1-methylpiperazine (34 mg, 0.36 mmol) and acetic acid (15 uL) in 1,2-dichloroethane (2 mL) was added sodium triacetoxyborohydride (60 mg, 0.28 mmol). The reaction mixture was stirred at room temperature overnight and then basified (NaHCO3, saturated), diluted with dichloromethane, washed with brine. Organic layer was separated, dried (MgSO4), filtered and evaporated in vacuo. The residue was purified using flash chromatography to give the title compound (33 mg).

Workup

  1. washwashed with brine
  2. customOrganic layer was separated
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. customevaporated in vacuo
  6. customThe residue was purified

Sources & evidence

ORD record
ord-ede076d4c37245f1b6a8832148fabae1
Source dataset
uspto-grants-2014_08
Patent number
US08802670B2

Reaction notes

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