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Benzaldehyde → (2R,3R,4S,5R)-2-[2-[(Benzylamino)methyl]-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl]-5-(methoxymethyl)tetrahydro-3,4-furandiol

HRID 2268344
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2268344
[NH2:1][CH2:2][C:3]1[N:11]=[C:10]2[C:6]([N:7]=[CH:8][N:9]2[C@H:12]2[C@H:16]([OH:17])[C@H:15]([OH:18])[C@@H:14]([CH2:19][O:20][CH3:21])[O:13]2)=[C:5]([NH:22][CH2:23][CH:24]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)[N:4]=1.[CH:37](=O)[C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>O1CCCC1.C(OCC)(=O)C>[CH2:37]([NH:1][CH2:2][C:3]1[N:11]=[C:10]2[C:6]([N:7]=[CH:8][N:9]2[C@H:12]2[C@H:16]([OH:17])[C@H:15]([OH:18])[C@@H:14]([CH2:19][O:20][CH3:21])[O:13]2)=[C:5]([NH:22][CH2:23][CH:24]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[C:25]2[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=2)[N:4]=1)[C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1
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Komponenten

6

Edukt 3

HCID 240BenzaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 9897827(2R,3R,4S,5R)-2-{2-(Aminomethyl)-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl}-5-(methoxymethyl)tetrahydro-3,4-furandiol

Produkt 1

HCID 9894535(2R,3R,4S,5R)-2-[2-[(Benzylamino)methyl]-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl]-5-(methoxymethyl)tetrahydro-3,4-furandiolAusbeute 57,7 %

Reagenzien, Katalysatoren, Lösungsmittel

2
HCID 8028TetrahydrofuranLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

(2R,3R,4S,5R)-2-{2-(Aminomethyl)-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl}-5-(methoxymethyl)tetrahydro-3,4-furandiol (example 1) (110 mg, 0.22 mmol) was dissolved (using gentle heating) in dry tetrahydrofuran (15 ml). The stirred solution was then cooled to room temperature and treated with a solution of benzaldehyde (21 mg, 0.20 mmol) in dry tetrahydrofuran (2 ml) followed by addition of sodium triacetoxyborohydride (70 mg, 0.33 mmol). The resultant mixture was stirred at room temperature for 24 hr, diluted with ethyl acetate and then washed sequentially with saturated aqueous sodium hydrogen carbonate and brine. The organic solution was then dried with anhydrous magnesium sulfate and the solvent removed under reduced pressure. The residue was purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol (92:8) to afford the title compound as a solid (67 mg). MS: 581 (MH+).

Aufarbeitung

  1. washwashed sequentially with saturated aqueous sodium hydrogen carbonate and brine
  2. dry with materialThe organic solution was then dried with anhydrous magnesium sulfate
  3. customthe solvent removed under reduced pressure
  4. customThe residue was purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol (92:8)

Quellen und Nachweise

ORD-Eintrag
ord-aad964db697d4a1aa9e470639c215d02
Quelldatensatz
uspto-grants-2001_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06326359B1

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