1-Pyrrolidinamine → 1-((3R,4R)-3-(4-dimethylamino-6-methylthieno[3,2-d]pyrimidin-2-ylamino)-4-hydroxypyrrolidin-1-yl)-2-(4-trifluoromethoxyphenyl)ethanone

HRID 1666630Notes

Reaction equation

HRID 1666630 reaction equation
NN1CCCC1.Cl[C:8]1[N:9]=[C:10]([N:18]([CH3:20])[CH3:19])[C:11]2[S:16][C:15]([CH3:17])=[CH:14][C:12]=2[N:13]=1.[NH2:21][C@H:22]1[C@H:26]([OH:27])[CH2:25][N:24]([C:28](=[O:41])[CH2:29][C:30]2[CH:35]=[CH:34][C:33]([O:36][C:37]([F:40])([F:39])[F:38])=[CH:32][CH:31]=2)[CH2:23]1.CC(C)([O-])C.[Na+]>C(OCC)(=O)C.O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O1CCOCC1>[CH3:19][N:18]([CH3:20])[C:10]1[C:11]2[S:16][C:15]([CH3:17])=[CH:14][C:12]=2[N:13]=[C:8]([NH:21][C@H:22]2[C@H:26]([OH:27])[CH2:25][N:24]([C:28](=[O:41])[CH2:29][C:30]3[CH:31]=[CH:32][C:33]([O:36][C:37]([F:38])([F:39])[F:40])=[CH:34][CH:35]=3)[CH2:23]2)[N:9]=1

Participants

9

Reactant 4

HCID 279461-PyrrolidinamineHCID 23676156Sodium t-butoxideHCID 579700892-chloro-N,N,6-trimethylthieno[3,2-d]pyrimidin-4-amineHCID 579701111-((3R,4R)-3-amino-4-hydroxypyrrolidin-1-yl)-2-(4-trifluoromethoxyphenyl)ethanone

Product 1

HCID 579701861-((3R,4R)-3-(4-dimethylamino-6-methylthieno[3,2-d]pyrimidin-2-ylamino)-4-hydroxypyrrolidin-1-yl)-2-(4-trifluoromethoxyphenyl)ethanoneYield 29.7%

Reagents, catalysts & solvents 4

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
60 °C

Procedure

To a solution of 50% aqueous dimethyl amine (0.15 g) in ethanol (5 mL) were added 2,4-dichloro-6-methylthieno[3,2-d]pyrimidine (0.25 g) and triethylamine (0.12 g) at room temperature, and the mixture was stirred for 2 h. The reaction mixture was concentrated under reduced pressure and diluted with chloroform and water, and then the aqueous layer was extracted with chloroform. The organic layer was washed with 1 M hydrochloric acid and saturated brine and then dried with anhydrous magnesium sulfate, the desiccant was removed by filtration, and the filtrate was concentrated under reduced pressure and crystallized with diethyl ether to obtain 2-chloro-N,N,6-trimethylthieno[3,2-d]pyrimidin-4-amine (0.16 g). (2) To a mixture of 2-chloro-N,N,6-trimethylthieno[3,2-d]pyrimidin-4-amine (0.150 g), Pd2(dba)3 (0.033 g), (±)-BINAP (0.067 g), 1-((3R,4R)-3-amino-4-hydroxypyrrolidin-1-yl)-2-(4-trifluoromethoxyphenyl)ethanone (0.26 g), and 1,4-dioxane (8 mL) was added sodium t-butoxide (0.21 g) under nitrogen atmosphere, and the mixture was stirred at 60° C. for 5 h. The reaction mixture was diluted with ethyl acetate and water, then the interlayer was removed by Celite filtration, and the organic layer was washed with saturated brine. The organic layer was dried with anhydrous magnesium sulfate, then the desiccant was removed by filtration, the filtrate was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (silica gel, chloroform/methanol, and NH silica gel, ethyl acetate) to obtain light yellow amorphous 1-((3R,4R)-3-(4-dimethylamino-6-methylthieno[3,2-d]pyrimidin-2-ylamino)-4-hydroxypyrrolidin-1-yl)-2-(4-trifluoromethoxyphenyl)ethanone (0.097 g).

Workup

  1. customthe interlayer was removed by Celite filtration
  2. washthe organic layer was washed with saturated brine
  3. dry with materialThe organic layer was dried with anhydrous magnesium sulfate
  4. customthe desiccant was removed by filtration
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customthe residue was purified by silica gel column chromatography (silica gel, chloroform/methanol, and NH silica gel, ethyl acetate)

Sources & evidence

ORD record
ord-75507d9fee7d4c08b5ce24243a418dc0
Source dataset
uspto-grants-2011_10
Patent number
US08044068B2

Reaction notes

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