Acetic Acid → N-((2-chloro-4-morpholinothieno[2,3-d]pyrimidin-6-yl)methyl)-N,1-dimethylpiperidin-4-amine

HRID 1365469Notes

Reaction equation

HRID 1365469 reaction equation
[Cl:1][C:2]1[N:3]=[C:4]([N:13]2[CH2:18][CH2:17][O:16][CH2:15][CH2:14]2)[C:5]2[CH:10]=[C:9]([CH:11]=O)[S:8][C:6]=2[N:7]=1.[CH3:19][NH:20][CH:21]1[CH2:26][CH2:25][N:24]([CH3:27])[CH2:23][CH2:22]1.CC(O)=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>ClCCCl>[Cl:1][C:2]1[N:3]=[C:4]([N:13]2[CH2:18][CH2:17][O:16][CH2:15][CH2:14]2)[C:5]2[CH:10]=[C:9]([CH2:11][N:20]([CH3:19])[CH:21]3[CH2:26][CH2:25][N:24]([CH3:27])[CH2:23][CH2:22]3)[S:8][C:6]=2[N:7]=1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 5663231-Methyl-4-(methylamino)piperidineHCID 5049666Sodium triacetoxyborohydrideHCID 568338442-Chloro-4-morpholinothieno[2,3-d]pyrimidine-6-carbaldehyde

Product 1

HCID 86623517N-((2-chloro-4-morpholinothieno[2,3-d]pyrimidin-6-yl)methyl)-N,1-dimethylpiperidin-4-amineYield 50.5%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

To a solution of 2-chloro-4-morpholinothieno[2,3-d]pyrimidine-6-carbaldehyde (0.3 g, 1.0 mmol) in 1,2-dichloroethane (3.6 mL) was added N,1-dimethylpiperidin-4-amine (1.4 mmol), and AcOH (1.0 mmol). After the reaction mixture stirred 10 min at room temperature, Na(OAc)3BH (1.1 mmol) was added then the mixture stirred 72 h at room temperature. The reaction was quenched by the addition of saturated aqueous NaHCO3. The organic layer was separated and the aqueous layer was extracted with CH2Cl2. The combined organics were dried over Na2SO4 and concentrated in vacuo. The crude material was purified by silica gel chromatography (0-20% MeOH in CH2Cl2) to afford pure N-((2-chloro-4-morpholinothieno[2,3-d]pyrimidin-6-yl)methyl)-N,1-dimethylpiperidin-4-amine (0.2 g). MS (Q1) 410 (M)+

Workup

  1. stirringthe mixture stirred 72 h at room temperature
  2. customThe reaction was quenched by the addition of saturated aqueous NaHCO3
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with CH2Cl2
  5. dry with materialThe combined organics were dried over Na2SO4
  6. concentrationconcentrated in vacuo
  7. customThe crude material was purified by silica gel chromatography (0-20% MeOH in CH2Cl2)

Sources & evidence

ORD record
ord-2ab5846857d84656b6f95778d793d412
Source dataset
uspto-grants-2011_02
Patent number
US07888352B2

Reaction notes

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