Palmitic Acid → 9-(1,3-Di-n-hexadecanoyloxy-2-propoxymethyl)guanine

HRID 65105

Reaktionsgleichung

[OH:1][CH2:2][CH:3]([O:6][CH2:7][N:8]1[CH:16]=[N:15][C:14]2[C:13](=[O:17])[NH:12][C:11]([NH2:18])=[N:10][C:9]1=2)[CH2:4][OH:5].[C:19]([OH:36])(=O)[CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH3:34]>CN(C)C=O>[C:19]([O:1][CH2:2][CH:3]([O:6][CH2:7][N:8]1[CH:16]=[N:15][C:14]2[C:13](=[O:17])[NH:12][C:11]([NH2:18])=[N:10][C:9]1=2)[CH2:4][O:5][C:19](=[O:36])[CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH3:34])(=[O:36])[CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH3:34]

Komponenten

Reaktionsbedingungen

Temperatur: 50 °C

Versuchsvorschrift

To 50 mg of 9-(1,3-dihydroxy-2-propoxymethyl)guanine in 5 ml of N,N-dimethylformamide were added 290 mg dicyclohexycarbodiimide and 300 mg of n-hexadecanoic acid and the solution was stirred at 50° C. for 50 hours. The compound was then precipitated in ice water. The water was extracted with methylene chloride (3x). The combined methylene chloride extracts were concentrated, then purified on preparative silica gel plates developed in 1:9 methanol:methylene chloride to yield 140 mg 9-(1,3-di-n-hexadecanoyloxy-2-propoxymethyl)guanine, m.p. 150°-154° C.

Aufarbeitung

customThe compound was then precipitated in ice water
extractionThe water was extracted with methylene chloride (3x)
concentrationThe combined methylene chloride extracts were concentrated
custompurified on preparative silica gel plates

Quellen und Nachweise

ORD-Eintrag: ord-12d72320893d464589daebde79908be2
Quelldatensatz: uspto-grants-1986_09
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US04612314

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