Potassium Carbonate → 6,7-Dimethoxy-2-[3-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]-2-hydroxy-1-propyl]1,2,3,4-tetrahydroisoquinoline

HRID 233257

Reaktionsgleichung

Reaktionsgleichung von HRID 233257
[O:1]1[CH2:20][CH:2]1[CH2:3][N:4]1[CH2:9][CH2:8][CH:7]([C:10]2[C:14]3[CH:15]=[CH:16][C:17]([F:19])=[CH:18][C:13]=3[O:12][N:11]=2)[CH2:6][CH2:5]1.C([O-])([O-])=O.[K+].[K+].Cl.[CH3:28][O:29][C:30]1[CH:31]=[C:32]2[C:37](=[CH:38][C:39]=1[O:40][CH3:41])[CH2:36][NH:35][CH2:34][CH2:33]2>C(O)(C)C>[CH3:28][O:29][C:30]1[CH:31]=[C:32]2[C:37](=[CH:38][C:39]=1[O:40][CH3:41])[CH2:36][N:35]([CH2:20][CH:2]([OH:1])[CH2:3][N:4]1[CH2:9][CH2:8][CH:7]([C:10]3[C:14]4[CH:15]=[CH:16][C:17]([F:19])=[CH:18][C:13]=4[O:12][N:11]=3)[CH2:6][CH2:5]1)[CH2:34][CH2:33]2

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 64560356,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochlorideHCID 15285697N-(2,3-epoxypropyl)-4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidine

Produkt 1

HCID 152856806,7-Dimethoxy-2-[3-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]-2-hydroxy-1-propyl]1,2,3,4-tetrahydroisoquinolineAusbeute 11 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3776IsopropanolLösungsmittel

Versuchsvorschrift

A stirred mixture of 1-(2,3-epoxypropyl)-4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidine (3.2 g, 11.6 mmol), K2CO3 (2 gm, 1.25 eq) and 6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride (3.3 g, 1.25 eq) in isopropyl alcohol (200 ml) was heated at reflux for 6 hours. The mixture was cooled and filtered. The solvent was removed to about 50 ml and the solution was allowed to stand overnight. Crystals (0.6 g) formed and were collected. The mother liquor was concentrated to a white solid. Recrystallization twice from ethanol yielded the product (1.95 g, m.p. 153°-154° C.

Aufarbeitung

  1. temperaturewas heated
  2. temperatureat reflux for 6 hours
  3. temperatureThe mixture was cooled
  4. filtrationfiltered
  5. customThe solvent was removed to about 50 ml

Quellen und Nachweise

ORD-Eintrag
ord-59e5dd2a30dc4712a9725efaee911ca8
Quelldatensatz
uspto-grants-1997_01
Patentnummer
US05591745

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