1,8-Diazabicyclo(5.4.0)undec-7-ene → 4-Difluoromethoxy-n-[2-(2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1h-isoindol-4-ylmethyl]-benzamide

HRID 448470Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 448470
Cl.[NH2:2][CH2:3][C:4]1[CH:12]=[CH:11][CH:10]=[C:9]2[C:5]=1[C:6](=[O:22])[N:7]([CH:14]1[CH2:19][CH2:18][C:17](=[O:20])[NH:16][C:15]1=[O:21])[C:8]2=[O:13].N12CCCN=C1CCCCC2.[F:34][CH:35]([F:46])[O:36][C:37]1[CH:45]=[CH:44][C:40]([C:41](O)=[O:42])=[CH:39][CH:38]=1.Cl.CN(C)CCCN=C=NCC>CC#N>[F:34][CH:35]([F:46])[O:36][C:37]1[CH:38]=[CH:39][C:40]([C:41]([NH:2][CH2:3][C:4]2[CH:12]=[CH:11][CH:10]=[C:9]3[C:5]=2[C:6](=[O:22])[N:7]([CH:14]2[CH2:19][CH2:18][C:17](=[O:20])[NH:16][C:15]2=[O:21])[C:8]3=[O:13])=[O:42])=[CH:44][CH:45]=1

Komponenten

6

Edukt 4

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 7373604-(Difluoromethoxy)benzoic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 219885254-(aminomethyl)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochloride

Produkt 1

HCID 588273464-Difluoromethoxy-n-[2-(2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1h-isoindol-4-ylmethyl]-benzamideAusbeute 64 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To a stirred suspension of 4-aminomethyl-2-(2,6-dioxo-piperidin-3-yl)-isoindole-1,3-dione hydrochloride (0.70 g, 2.2 mmol) in CH3CN (60 ml), was added 1,8-diazabicyclo[5.4.0]undec-7-ene (0.82 g, 5.4 mmol). After stirring for 10 minutes, 1-hydroxybenzenetriazole (0.35 g, 2.6 mmol) and 4-difluoromethoxy benzoic acid (0.45 g, 2.4 mmol) were added followed by 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.62 g, 3.2 mmol). After stirring at room temperature overnight, the reaction mixture was concentrated in vacuo, and the residue was dissolved in CH2Cl2 (50 mL). The CH2Cl2 solution was washed with water (2×30 mL) and brine (30 mL) and dried over MgSO4. Solvent was removed in vacuo, and the resulting oil was purified by ISCO silica gel flash chromatography (eluent: 0% MeOH in CH2Cl2 to 5% MeOH in 10 min then stay at this ratio for 15 min) to afford 4-difluoromethoxy-N-[2-(2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylmethyl]-benzamide as a yellow solid (0.63 g, 64%): mp, 155-157° C.; HPLC: Waters Symmetry C-18, 3.9×150 mm, 5 micro, 1 mL/min, 240 nm, 40/60 (CH3CN/H2O): tR=4.2 min. (97%); 1H NMR (DMSO-d6): δ 2.06-2.11 (m, 1H), 2.50-2.65 (m, 2H), 2.85-2.92 (m, 1H), 4.95 (d, J=5.8 Hz, 2H), 5.16-5.21 (dd, J=5, 12 Hz, 1H), 7.28-7.30 (m, 2H), 7.36 (t, J=73.5 Hz, 1H), 7.72-7.86 (m, 3H), 7.98-8.02 (m, 2H), 9.18 (t, J=5.8 Hz, 1H), 11.15 (s, 1H). 13C NMR (DMSO-d6) δ: 21.97, 30.92, 38.34, 48.86, 112.61, 116.03, 117.97, 119.45, 121.87, 127.13, 129.45, 130.55, 131.52, 133.05, 134.79, 139.22, 153.30, 165.60, 166.95, 167.52, 169.81, 172.74. Anal Calcd for C22H17F2N3O6: C, 57.77; H, 3.75; N, 9.19; F, 8.31. Found: C, 57.67; H, 3.59; N, 9.01; F, 8.22.

Aufarbeitung

  1. stirringAfter stirring at room temperature overnight
  2. concentrationthe reaction mixture was concentrated in vacuo
  3. dissolutionthe residue was dissolved in CH2Cl2 (50 mL)
  4. washThe CH2Cl2 solution was washed with water (2×30 mL) and brine (30 mL)
  5. dry with materialdried over MgSO4
  6. customSolvent was removed in vacuo
  7. customthe resulting oil was purified by ISCO silica gel flash chromatography (eluent
  8. wait0% MeOH in CH2Cl2 to 5% MeOH in 10 min then stay at this ratio for 15 min

Quellen und Nachweise

ORD-Eintrag
ord-0e6340a12bdd496bba14761e98d2641b
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08481568B2

Notizen zur Reaktion

Wird geladen…