Chlorotrimethylsilane → 3-((4-(2-((1-(4-Methoxy-2,6-dimethylphenylsulfonyl)pyrrolidin-2-yl)-methoxy)acetyl)piperazin-1-yl)methyl)benzonitrile hydrochloride

HRID 2090808

Reaktionsgleichung

Reaktionsgleichung von HRID 2090808
COC1C=C(C)C(S(N2CCCC2COCC(O)=O)(=O)=O)=C(C)C=1.N1(CC2C=C(C=CC=2)C#N)CCNCC1.C(=O)([O-])O.[Na+].[CH3:45][O:46][C:47]1[CH:52]=[C:51]([CH3:53])[C:50]([S:54]([N:57]2[CH2:61][CH2:60][CH2:59][CH:58]2[CH2:62][O:63][CH2:64][C:65]([N:67]2[CH2:72][CH2:71][N:70]([CH2:73][C:74]3[CH:75]=[C:76]([CH:79]=[CH:80][CH:81]=3)[C:77]#[N:78])[CH2:69][CH2:68]2)=[O:66])(=[O:56])=[O:55])=[C:49]([CH3:82])[CH:48]=1.[Cl:83][Si](C)(C)C>ClCCl.CC(C)=O.C(OCC)C.C(OCC)C>[ClH:83].[CH3:45][O:46][C:47]1[CH:48]=[C:49]([CH3:82])[C:50]([S:54]([N:57]2[CH2:61][CH2:60][CH2:59][CH:58]2[CH2:62][O:63][CH2:64][C:65]([N:67]2[CH2:72][CH2:71][N:70]([CH2:73][C:74]3[CH:75]=[C:76]([CH:79]=[CH:80][CH:81]=3)[C:77]#[N:78])[CH2:69][CH2:68]2)=[O:66])(=[O:55])=[O:56])=[C:51]([CH3:53])[CH:52]=1

Komponenten

9

Versuchsvorschrift

N,N′-Carbonyldiimidazole (71 mg, 0.441 mmol) was added to a solution of 2-((1-(4-methoxy-2,6-dimethylphenylsulfonyl)pyrrolidin-2-yl)methoxy)acetic acid (150 mg, 0.420 mmol) in dichloromethane (7 ml), and the mixture was stirred for 1 h at room temperature. A solution of 3-(piperazin-1-ylmethyl)benzonitrile (84 mg, 0.420 mmol) in dichloromethane (3 ml) was then added, and the reaction mixture was stirred for 15 h at room temperature. Saturated sodium hydrogen carbonate solution (10 ml) was then added to the reaction mixture, and then the aqueous phase was extracted with dichloromethane (2×10 ml). The combined organic phases were extracted with saturated sodium chloride solution (10 ml), dried over sodium sulfate and concentrated in vacuo. The crude product was purified by flash chromatography using ethyl acetate/hexane/ammonia solution (25% aq.) (100:10:1). 3-((4-(2-((1-(4-methoxy-2,6-dimethylphenylsulfonyl)pyrrolidin-2-yl)methoxy)acetyl)piperazin-1-yl)methyl)benzonitrile (190 mg, 0.351 mmol) was dissolved in acetone/diethyl ether (1:1; 8 ml), and chlorotrimethylsilane (89 μl, 0.702 mmol) was added slowly. Diethyl ether (10 ml) was then added, and the mixture was stirred for 1 h at 0° C. The resulting precipitate was filtered off, dried with the exclusion of air and washed with diethyl ether.

Aufarbeitung

  1. stirringthe reaction mixture was stirred for 15 h at room temperature
  2. extractionthe aqueous phase was extracted with dichloromethane (2×10 ml)
  3. extractionThe combined organic phases were extracted with saturated sodium chloride solution (10 ml)
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe crude product was purified by flash chromatography
  7. stirringthe mixture was stirred for 1 h at 0° C
  8. filtrationThe resulting precipitate was filtered off
  9. customdried with the exclusion of air
  10. washwashed with diethyl ether

Quellen und Nachweise

ORD-Eintrag
ord-f6d1b5778a6c4238a9d78d502876f1f9
Quelldatensatz
uspto-grants-2013_05
Patentnummer
US08435978B2

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