Methyl iodide → HCID 22941572, compound

Participants

Reaction Conditions

Reaction Steps

3.6 cm3 of methyl iodide and 7 g of solid sodium hydrogen carbonate are added, with stirring, to a solution of 1.5 g of methyl 5-(2(R)-tert-butoxycarbonylamino-3-(triphenylmethylthio)-propylamino)-1-naphthoate in 25 cm3 of dimethyl-formamide. The reaction mixture is stirred for 20 hours at a temperature in the region of 20° C. and then poured onto 200 cm3 of ice. The aqueous phase is extracted 3 times with 150 cm3 of ethyl acetate. The organic phases are combined, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure. The red oil obtained is purified by chromatography on silica [eluent: cyclohexane/ethyl acetate (90/10 by volume)]. 0.56 g of methyl 5-(2(R)-tert-butoxycarbonylamino-3-(triphenylmethylthio)propyl-N-methylamino)-1-naphthoate is obtained, the characteristics of which are the following:

Provenance & Evidence