Triethylamine → HCID 70227511, compound

Participants

Reaction Steps

9.2 ml of triethylamine and 2.4 ml of methylisocyanate were added to an acetonitrile solution containing 4.98 g of (1S,4aS,7aR)-1-hydroxy-7-methyl-1,4a,5,7a-tetrahydrocyclopenta [c]-pyrane-4-carboxylic acid benzyl ester followed by stirring for 1 hour at room temperature. The reaction mixture was then extracted with ethyl acetate. After washing the organic phase with brine, it was dried over anhydrous magnesium sulfate. After distilling off the solvent under reduced pressure, the residue was purified by silica gel chromatography to obtain a colorless oil from the hexane-ethyl acetate eluate in the form of (1S,4aS,7aR)-7-methyl-1-(methylcarbamoyloxy)-1,4a,5,7a-tetrahydrocyclopenta [c]-pyrane-4-carboxylic acid benzyl ester of 5.10 g (yield: 86%). The physicochemical properties of this compound are shown below.

Provenance & Evidence