Pyridine → N,N'-Di-tert-butoxycarbonyl-7-(1-benzylsulfonylpiperidin-4-ylmethoxy)-1,2,3,4-tetrahydroisoquinoline-2-carboxamidine

HRID 412567Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 412567
[C:1]([O:5][C:6]([NH:8][C:9]([N:18]1[CH2:27][CH2:26][C:25]2[C:20](=[CH:21][C:22]([O:28][CH2:29][CH:30]3[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]3)=[CH:23][CH:24]=2)[CH2:19]1)=[N:10][C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])=[O:7])([CH3:4])([CH3:3])[CH3:2].N1C=CC=CC=1.[C:42]1([CH2:48][S:49](Cl)(=[O:51])=[O:50])[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=1>O1CCCC1.CN(C)C1C=CN=CC=1>[C:14]([O:13][C:11]([NH:10][C:9]([N:18]1[CH2:27][CH2:26][C:25]2[C:20](=[CH:21][C:22]([O:28][CH2:29][CH:30]3[CH2:35][CH2:34][N:33]([S:49]([CH2:48][C:42]4[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=4)(=[O:51])=[O:50])[CH2:32][CH2:31]3)=[CH:23][CH:24]=2)[CH2:19]1)=[N:8][C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])=[O:12])([CH3:17])([CH3:16])[CH3:15]

Komponenten

6

Edukt 3

HCID 1049PyridineHCID 74740Phenylmethanesulfonyl chlorideHCID 60064218N,N'-ditert-butoxycarbonyl-7-(piperidin-4-ylmethoxy)-1,2,3,4-tetrahydroisoquinoline-2-carboxamidine

Produkt 1

HCID 69696784N,N'-Di-tert-butoxycarbonyl-7-(1-benzylsulfonylpiperidin-4-ylmethoxy)-1,2,3,4-tetrahydroisoquinoline-2-carboxamidineAusbeute 36,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of N,N′-di-tert-butoxycarbonyl-7-(piperidin-4-ylmethoxy)-1,2,3,4-tetrahydroisoquinoline-2-carboxamidine (100 mg) in tetrahydrofuran (1.5 ml) were added pyridine (0.02 ml), 4-dimethylaminopyridine (12 mg) and α-toluenesulfonyl chloride (43 mg), and the mixture was stirred at room temperature for 12 hours and then at 50° C. for 6 hours. After completion of the reaction, the mixture was extracted with ethyl acetate and washed successively with water and saturated brine. The organic layer was dried over anhydrous sodium sulfate, and the solvent was evaporated. The obtained residue was purified by silica gel column chromatography (hexane:acetone=3:1) and dried under reduced pressure to give the title compound (48 mg).

Aufarbeitung

  1. waitat 50° C. for 6 hours
  2. customAfter completion of the reaction
  3. extractionthe mixture was extracted with ethyl acetate
  4. washwashed successively with water and saturated brine
  5. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  6. customthe solvent was evaporated
  7. customThe obtained residue was purified by silica gel column chromatography (hexane:acetone=3:1)
  8. customdried under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-dc810bceb2024c38980e3ca6770d8647
Quelldatensatz
uspto-grants-2003_05
Patentnummer
US06562828B1

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