Chloroform → HCID 53848580, compound

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Reaction Steps

Compounds 6 and 7 are prepared by treating N6 -benzoyl adenosine with tritylchloride in pyridine and refluxing for 2 hours. N6 -benzoyl-5'-trityladenosine is isolated by extraction with chloroform. The water from the chloroform phase is removed by drying with sodium sulfate N6 -benzoyl-2',5'-di-O-trityladenosine and N6 -benzoyl-3',5'-di-O-trityladenosine are isolated by preparative silica gel thin layer chromatography in chloroform/ethanol. Compounds 6 and 7 are prepared by treating the isolated compounds with n-pentylchloride and n-heptylchloride, respectively, under reflux in a suspension of sodium hydroxide in benzene. The solution is neutralized by refluxing in acetic acid followed by the addition of diethyl ether and water. The reaction products are extracted with chloroform followed by thin layer chromatography with chloroform:methanol (4:1) on silica gel plates. The trityl and benzoyl groups are removed by refluxing in acetic acid for one hour, cooling, extraction with diethyl ether, followed by concentration and cooling to yield crystalline compounds 6 and 7. This method of preparation is carried out according to Blank, H. U., Franne, D., Myles, A. and Pfleiderer, W., Justus Liebigs Ann. Chem. 742, 34 (1970), which is incorporated herein by reference.

Provenance & Evidence