Triethylamine → (5-Ethylthiophen-3-yl)(9-(3-fluoro-5-(2-hydroxyethyl)benzyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)methanone

HRID 471220Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 471220
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[O:25]1[C:30]2([CH2:35][CH2:34][N:33]([CH2:36][C:37]3[CH:38]=[C:39]([CH2:44][CH2:45][OH:46])[CH:40]=[C:41]([F:43])[CH:42]=3)[CH2:32][CH2:31]2)[CH2:29][NH:28][CH2:27][CH2:26]1.[CH2:47]([C:49]1[S:53][CH:52]=[C:51]([C:54](O)=[O:55])[CH:50]=1)[CH3:48].C(N(CC)CC)C>CN(C=O)C>[CH2:47]([C:49]1[S:53][CH:52]=[C:51]([C:54]([N:28]2[CH2:29][C:30]3([CH2:35][CH2:34][N:33]([CH2:36][C:37]4[CH:38]=[C:39]([CH2:44][CH2:45][OH:46])[CH:40]=[C:41]([F:43])[CH:42]=4)[CH2:32][CH2:31]3)[O:25][CH2:26][CH2:27]2)=[O:55])[CH:50]=1)[CH3:48]

Komponenten

6

Reaktionsbedingungen

Temperatur
20 °C

Versuchsvorschrift

HATU (0.449 g) was added in one portion to a solution at 0° C. of 2-(3-(1-oxa-4,9-diazaspiro[5.5]undecan-9-ylmethyl)-5-fluorophenyl)ethanol (example 55, step c) (0.28 g) and 5-ethylthiophene-3-carboxylic acid (0.142 g) and triethylamine (0.506 mL) in DMF (10 mL). The mixture was then stirred at 20° C. for 1 hour. The reaction mixture was partitioned between ethyl acetate and brine, the organic layer was washed twice with brine, dried over sodium sulphate, filtered and the solvent evaporated under reduced pressure. The crude product was purified by flash silica chromatography using 2% methanol in dichloromethane with 1% triethylamine as solvent. Pure fractions were evaporated to dryness to afford the subtitled compound. Yield 0.21 g.

Aufarbeitung

  1. customThe reaction mixture was partitioned between ethyl acetate and brine
  2. washthe organic layer was washed twice with brine
  3. dry with materialdried over sodium sulphate
  4. filtrationfiltered
  5. customthe solvent evaporated under reduced pressure
  6. customThe crude product was purified by flash silica chromatography
  7. customPure fractions were evaporated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-311b03a106fe4201a1ee9084a20d0229
Quelldatensatz
uspto-grants-2014_01
Patentnummer
US08629271B2

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