Dichloromethane → (S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester 7-methyl ester

HRID 391853

Reaktionsgleichung

Reaktionsgleichung von HRID 391853
[Cl:1][C:2]1[CH:3]=[C:4]([CH:17]=[CH:18][C:19]=1[Cl:20])[CH2:5][O:6][C:7]1[CH:12]=[CH:11][C:10]([C:13](=[O:16])[CH:14]=O)=[CH:9][CH:8]=1.[CH3:21][O:22][C:23]([C@@H:25]1[CH2:34][C:33]2[C:28](=[CH:29][C:30](O)=[C:31]([NH2:35])[CH:32]=2)[CH2:27][N:26]1[C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])=[O:24].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(Cl)Cl>ClCCCl.O>[CH3:21][O:22][C:23]([CH:25]1[CH2:34][C:33]2[CH:32]=[C:31]3[C:30]([O:16][C@@H:13]([C:10]4[CH:9]=[CH:8][C:7]([O:6][CH2:5][C:4]5[CH:17]=[CH:18][C:19]([Cl:20])=[C:2]([Cl:1])[CH:3]=5)=[CH:12][CH:11]=4)[CH2:14][NH:35]3)=[CH:29][C:28]=2[CH2:27][N:26]1[C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])=[O:24]

Komponenten

7

Edukt 4

HCID 6344DichloromethaneHCID 5049666Sodium triacetoxyborohydrideHCID 59337426(S)-6-amino-7-hydroxy-3,4-dihydro-1H-isoquinoline-2,3-dicarboxylic acid 2-tert-butyl ester 3-methyl esterHCID 86654900[4-(3,4-Dichloro-benzyloxy)-phenyl]-oxo-acetaldehyde

Produkt 1

HCID 66719396(S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester 7-methyl esterAusbeute 71,6 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 111,2-DichloroethaneLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

[4-(3,4-Dichloro-benzyloxy)-phenyl]-oxo-acetaldehyde (616 mg) was dissolved in DCE (25 mL), and (S)-6-amino-7-hydroxy-3,4-dihydro-1H-isoquinoline-2,3-dicarboxylic acid 2-tert-butyl ester 3-methyl ester (644 mg) and sodium triacetoxyborohydride (520 mg) were added. The mixture was stirred overnight at room temperature. DCM (50 mL) was added to the reaction mixture and poured into water (25 mL). The organic layer was washed with 10% Na2CO3 solution and brine, and dried over sodium sulfate. The solvent was removed under reduced pressure and the residue was purified by flash chromatography (hexanes/ethyl acetate from 90:10 to 70:30) to give (S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester 7-methyl ester (855 mg).

Aufarbeitung

  1. washThe organic layer was washed with 10% Na2CO3 solution and brine
  2. dry with materialdried over sodium sulfate
  3. customThe solvent was removed under reduced pressure
  4. customthe residue was purified by flash chromatography (hexanes/ethyl acetate from 90:10 to 70:30)

Quellen und Nachweise

ORD-Eintrag
ord-07c76b50941446a294cb5d682d3a0973
Quelldatensatz
uspto-grants-2013_02
Patentnummer
US08383644B2

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