Ethylmorpholine → Ro 31-8875

HRID 1899411Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1899411
[NH2:1][C@@H:2]([CH2:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1)[C@H:3]([OH:22])[CH2:4][N:5]1[C@H:14]([C:15]([NH:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:13][C@H:12]2[C@H:7]([CH2:8][CH2:9][CH2:10][CH2:11]2)[CH2:6]1.[CH2:30]([O:37][C:38]([NH:40][C@H:41]([C:46](O)=[O:47])[CH2:42][C:43](=[O:45])[NH2:44])=[O:39])[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.OC1C2N=NNC=2C=CC=1.C(N1CCOCC1)C.C1(N=C=NC2CCCCC2)CCCCC1>O1CCCC1.C(OCC)(=O)C>[CH2:30]([O:37][C:38]([NH:40][C@H:41]([C:46]([NH:1][C@@H:2]([CH2:23][C:24]1[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=1)[C@H:3]([OH:22])[CH2:4][N:5]1[C@H:14]([C:15]([NH:17][C:18]([CH3:21])([CH3:19])[CH3:20])=[O:16])[CH2:13][C@H:12]2[C@H:7]([CH2:8][CH2:9][CH2:10][CH2:11]2)[CH2:6]1)=[O:47])[CH2:42][C:43](=[O:45])[NH2:44])=[O:39])[C:31]1[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=1

Komponenten

8

Edukt 5

HCID 7525EthylmorpholineHCID 10868DicyclohexylcarbodiimideHCID 75314Benzyloxycarbonyl-asparagineHCID 9865804(3S,4aS,8aS)-2-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-tert-butyldecahydroisoquinoline-3-carboxamideHCID 178418300HCID 178418300, Verbindung

Produkt 1

HCID 453680Ro 31-8875Ausbeute 47,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8028TetrahydrofuranLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A solution of 561 mg of 2-[3(S)-amino-2(R)-hydroxy-4-phenylbutyl]-N-tert.butyl-decahydro-(4aS,8aS)-isoquinoline-3(S)-carboxamide and 372 mg of N-(benzyloxycarbonyl)-L-asparagine in 20 ml of dry tetrahydrofuran was cooled in an ice/salt mixture. 189 mg of hydroxybenzotriazole, 161 mg of N-ethylmorpholine and 317 mg of dicyclohexylcarbodiimide were added and the mixture was stirred for 16 hours. The mixture was then diluted with ethyl acetate and filtered. The filtrate was washed with aqueous sodium bicarbonate solution and sodium chloride solution. The solvent was removed by evaporation and the residue was chromatographed on silica gel using dichloromethane/methanol (9:1) for the elution to give 434 mg of 2-[3(S)-[[N-(benzyloxycarbonyl)-L-asparaginyl]amino]-2(R) -hydroxy-4-phenylbutyl]-N-tert.butyl-decahydro-(4aS, 8aS)-isoquinoline-3(S)-carboxamide as a white solid from methanol/diethyl ether; MS: m/e 650 [M+H]+.

Aufarbeitung

  1. filtrationfiltered
  2. washThe filtrate was washed with aqueous sodium bicarbonate solution and sodium chloride solution
  3. customThe solvent was removed by evaporation
  4. customthe residue was chromatographed on silica gel
  5. washfor the elution

Quellen und Nachweise

ORD-Eintrag
ord-67993b04100a4840bf3fbaa00276f2dc
Quelldatensatz
uspto-grants-1996_11
Patentnummer
US05571920

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