Diisopropylethylamine → 7-[(R)-2-(naphthalen-1-yloxymethyl)pyrrolidin-1-yl]-[1,2,4]-triazolo[1,5-a]pyrimidine

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Reaction Steps

400 mg of (R)-2-(naphthalen-1-yloxymethyl)pyrrolidine, 500 mg of the 7-chloro-[1,2,4]triazolo[1,5-a]pyrimidine prepared above and 650 mg of N-ethyldiisopropylamine are heated at 130° C. in a microwave for 3 h in 40 ml of 1-butanol. The butanol is subsequently removed in vacuo, the residue is taken up in ethyl acetate, mixed with water, adjusted to pH 12 using 1 N NaOH solution, phases are separated, the organic phase is dried over sodium sulfate, evaporated and chromatographed on silica gel, giving 640 mg of “A1”; m.p. 74-75°;

Provenance & Evidence